Alkyl Halide
Alkyl Halide
1)
1) Which of the following is an example of aralkyl halide?Which of the following is an example of aralkyl halide?
(a) p-Chlorotoluene (b) Chlorobenzene (c) Allyl chloride (d) Benzyl chloride (a) p-Chlorotoluene (b) Chlorobenzene (c) Allyl chloride (d) Benzyl chloride 2)
2) In which of the following alkyl halides all the In which of the following alkyl halides all the hydrogen atoms are equivalent?hydrogen atoms are equivalent?
(a) iso-Butyl chloride (b) neo-Pentyl chloride (c) n-Butyl chloride (d) tert-Butyl (a) iso-Butyl chloride (b) neo-Pentyl chloride (c) n-Butyl chloride (d) tert-Butyl chloride
chloride 3)
3) Which of the following an aralkyl halide?Which of the following an aralkyl halide?
(a) 4-Chlorotoluene (2) Bromobenzene (c) 1,
(a) 4-Chlorotoluene (2) Bromobenzene (c) 1, 4-Dichlorobenzene (d) 1-Chloro-1-4-Dichlorobenzene (d) 1-Chloro-1-phenyl ethane
phenyl ethane 4)
4) Whcih of the following compounds can exhibit optical isomerism?Whcih of the following compounds can exhibit optical isomerism?
(a) Chlorocyclopropane (b) cis-1, Dichlorocyclopropane (c) trans-1, (a) Chlorocyclopropane (b) cis-1, Dichlorocyclopropane (c) trans-1, 2-Dichlorocyclopropane (d) trans-1,
Dichlorocyclopropane (d) trans-1, 3-Dichlorocyclobutan3-Dichlorocyclobutanee 10)
10) Which of the following is not a Which of the following is not a primary halide?primary halide?
(a) Isobutyl bromide (b) Neo-Pentyl chloride (c) Isopentyl bromide (d)
(a) Isobutyl bromide (b) Neo-Pentyl chloride (c) Isopentyl bromide (d) IsopropylIsopropyl chloride
chloride 6)
6) IUPAC name of crotyl chloride isIUPAC name of crotyl chloride is (a) 1-Chloro-2-butene (b)
(a) 1-Chloro-2-butene (b) 2-Chloro-2-buten2-Chloro-2-butene e (c) 3-Chloro-1-butene(d)-Chloro-1-(c) 3-Chloro-1-butene(d)-Chloro-1-butene
butene 7)
7) C-CI bond length is smallest inC-CI bond length is smallest in (a) Allyl chloride (b) Vinyl chloride
(a) Allyl chloride (b) Vinyl chloride (c) Ethyl chloride (d) Benzyl chloride(c) Ethyl chloride (d) Benzyl chloride 8)
8) When silver propionate is treated with Br2 in When silver propionate is treated with Br2 in CCI4 as solvent, the product isCCI4 as solvent, the product is
(a) Propionyl bromide (b) n-Propyl bromide (c) iso-Propyl bromide (d) Ethyl bromide (a) Propionyl bromide (b) n-Propyl bromide (c) iso-Propyl bromide (d) Ethyl bromide
9) Iso-Butylene can be converted
9) Iso-Butylene can be converted into tert-butyl bromide by its reaction withinto tert-butyl bromide by its reaction with (a) HBr (b) Br2 (c) HBr in the presence
(a) HBr (b) Br2 (c) HBr in the presence of peroxides (d) HOBr of peroxides (d) HOBr
10)
10) Methane reacts with limited amount of chlorine in Methane reacts with limited amount of chlorine in the presence of diffused sunlight tothe presence of diffused sunlight to
form chloromethane. The reaction takes place through....as intermediates form chloromethane. The reaction takes place through....as intermediates
(a) Carbocations (b) Free radicals (c) Carbanions (d) Carbenes (a) Carbocations (b) Free radicals (c) Carbanions (d) Carbenes
11) The best reagent for converting an alcohol into the corresponding chloride is 11) The best reagent for converting an alcohol into the corresponding chloride is (a) PCI5 (b) PCI3 (c) HCI/ZnCI2 (d) SOCI2
(a) PCI5 (b) PCI3 (c) HCI/ZnCI2 (d) SOCI2
Hint: ROH + SOCI2 to RCI + SO2 + HCI Hint: ROH + SOCI2 to RCI + SO2 + HCI
Side products in this reaction are volatile and can be easily expelled during Side products in this reaction are volatile and can be easily expelled during distillation
distillation
12) Which reagent cannot be used to prepare an alkyl chloride from an alcohol? 12) Which reagent cannot be used to prepare an alkyl chloride from an alcohol? (a) HCI + anhyd. ZnCI2 (b) NaCI (c)
(a) HCI + anhyd. ZnCI2 (b) NaCI (c) PCI5 (d) SOCI2PCI5 (d) SOCI2 13) Benzyl chloride can be prepared by reacting
13) Benzyl chloride can be prepared by reacting (a) Toluene with CI2 in the
(a) Toluene with CI2 in the presence of FeCI3 (b) Benzene wpresence of FeCI3 (b) Benzene with CH3CI in the presenceith CH3CI in the presence of AICI3
of AICI3
(c) Toluene with CI2 in the presence
(c) Toluene with CI2 in the presence of sunlight (d) Benzene with CI2 in the of sunlight (d) Benzene with CI2 in the presence of presence of FeCI3
FeCI3
14)
14) Which of the following has the hWhich of the following has the highest boiling point?ighest boiling point?
(a) 1-Chloropentane (b) 2-Chloropentane (c) 3-Chloropentane (d) All have equal (a) 1-Chloropentane (b) 2-Chloropentane (c) 3-Chloropentane (d) All have equal boiling point
boiling point
15) Which of the following alkyl halides has
15) Which of the following alkyl halides has the maximum density?the maximum density? (a) C2H5CI (b) C2H2Br (c) C2H5I (d) C2H5F
(a) C2H5CI (b) C2H2Br (c) C2H5I (d) C2H5F
Hint: Density of alkyle halide is in the order of RI>RBr>RCl>RF Hint: Density of alkyle halide is in the order of RI>RBr>RCl>RF 16)
(a) 1, 4-Dichlorobenzene (b) cis-1, Dichloroethylene (c) trans-1, (a) 1, 4-Dichlorobenzene (b) cis-1, Dichloroethylene (c) trans-1, 2-Dichloroethylene (d) Tetrachloromethane
Dichloroethylene (d) Tetrachloromethane 17)
17) Out of the following compounds which one will have zero dipole moment?Out of the following compounds which one will have zero dipole moment? (a) Chloromethane (b) Dichloromethane (c) Trichloromethane (d) None of these (a) Chloromethane (b) Dichloromethane (c) Trichloromethane (d) None of these compounds
compounds 18)
18) Which of the following is lighter than water?Which of the following is lighter than water?
(a) 1-Chlorobutane (b) 1-Bromopropane (c) 2-Bromopropane (d)
(a) 1-Chlorobutane (b) 1-Bromopropane (c) 2-Bromopropane (d) 1-Bromobutane1-Bromobutane 19)
19) Which of the following compounds will reacts with ethanolic KCN?Which of the following compounds will reacts with ethanolic KCN? (a) Chlorobenzene (b) Vinyl chloride (c) Allyl chloride (d) 4
(a) Chlorobenzene (b) Vinyl chloride (c) Allyl chloride (d) 4 -Chlorotoluene-Chlorotoluene 20)
20) Treatment of ammonia with excess ethyl chloride will yieldTreatment of ammonia with excess ethyl chloride will yield
(a) Triethyl amine (b) Diethyl
(a) Triethyl amine (b) Diethyl amine (c) Ethyl amine (d) Tetraethylammoniumamine (c) Ethyl amine (d) Tetraethylammonium chloride
chloride 21)
21) Ethyl bromide reacts with Zn-Cu couple in the Ethyl bromide reacts with Zn-Cu couple in the presence of ethyl alcohol to formpresence of ethyl alcohol to form (a) Butane (b) Diethyl ether (c)
(a) Butane (b) Diethyl ether (c) Methane (d) EthaneMethane (d) Ethane
22)
22)WWhich of the following compounds on oxidation gives benzoic acidhich of the following compounds on oxidation gives benzoic acid
(1)
(1) Chlorophenol (b) ChChlorophenol (b) Chlorotoluence (c) Chlorlorotoluence (c) Chlorobenzene (d) Benzyl chlobenzene (d) Benzyl chlorideoride 23)
23) When tert-butyl chloride is made to react with sodium methoxide, When tert-butyl chloride is made to react with sodium methoxide, the major productthe major product
is is
(a) Dimethyl ether (b) Di-tert butyl
(a) Dimethyl ether (b) Di-tert butyl ether (c) Tert-Butyl methyl ether (d) Isobutyleneether (c) Tert-Butyl methyl ether (d) Isobutylene
24) Among the following, the molecule
24) Among the following, the molecule with the highest dipole moment is :with the highest dipole moment is : (a)
(a) CH3Cl CH3Cl (b) (b) CH2Cl2 CH2Cl2 (c) (c) CHCl3 CHCl3 (d) (d) CCl4CCl4
25)
25) NBS is a specific reagent for NBS is a specific reagent for
(a) Nucleophilic substitution (b) Electrophilic substitution (c) Allyic substitution (d) (a) Nucleophilic substitution (b) Electrophilic substitution (c) Allyic substitution (d) Electrophilic addition
Electrophilic addition 26)
26) 2-Chloro-2-methyl butane, on reaction with alc. KOH gives X as the major product X2-Chloro-2-methyl butane, on reaction with alc. KOH gives X as the major product X is
is
(a) 2-Butene (b) 2-Methyl propene (c) 1-Butene (d) 2-Methyl-2-propanol (a) 2-Butene (b) 2-Methyl propene (c) 1-Butene (d) 2-Methyl-2-propanol 27)
27) 2-Chloro-2-methyl propane, on reaction with aq. KOH 2-Chloro-2-methyl propane, on reaction with aq. KOH gives X as the major productgives X as the major product
X is X is
(a) 2-Butene (b) 2-Methyl propene (c) 1-Butene (d) 2-Methyl-2-propanol (a) 2-Butene (b) 2-Methyl propene (c) 1-Butene (d) 2-Methyl-2-propanol 28)
28) An alkyl halide may be converted into an alken byAn alkyl halide may be converted into an alken by (a) Addition (b) Substitution (c) Elimination (d)
(a) Addition (b) Substitution (c) Elimination (d) HydrogenationHydrogenation
29) Which of the following compounds
29) Which of the following compounds would be hydrolysed most easily?would be hydrolysed most easily? (a) C2H5CI (b) C2H5Br (c) C2H5F (d) C2H5I
(a) C2H5CI (b) C2H5Br (c) C2H5F (d) C2H5I 30) Which of the following compounds
30) Which of the following compounds would be hydrolysed most easily?would be hydrolysed most easily? (a) C2H5Br (b) CH3Br (c) CH2 = CH
(a) C2H5Br (b) CH3Br (c) CH2 = CH - Br (d) CH2 = CH- CH2Br - Br (d) CH2 = CH- CH2Br
31)
31) Ethylene chloride and ethylidene chloride are isomeric compounds. Identify theEthylene chloride and ethylidene chloride are isomeric compounds. Identify the
statement that is not applicable to both of them statement that is not applicable to both of them
(a) Both of them are dihalogen derivatives (b) Both of them give Beilstein test (c) (a) Both of them are dihalogen derivatives (b) Both of them give Beilstein test (c) Both of them react with alc. KOH and give same product (d) Both of them react with Both of them react with alc. KOH and give same product (d) Both of them react with aqueous KOH and gives same
aqueous KOH and gives same productproduct 32)
32) A mixture of ethyl iodine nad n-propyl iodide is subjected to Wurtz reaction. WhichA mixture of ethyl iodine nad n-propyl iodide is subjected to Wurtz reaction. Which
of the following compounds is not
of the following compounds is not formed during the reaction?formed during the reaction?
(a) Butane (b) Propane (c) Pentane (d) Hexane (a) Butane (b) Propane (c) Pentane (d) Hexane 33)
33) When aqueous KOH reacts with n-propyl chloride, the product isWhen aqueous KOH reacts with n-propyl chloride, the product is
(a) Propylene (2) 2-Propanol
(a) Propylene (2) 2-Propanol (c) 1-Propanol (d) 1-Propenol(c) 1-Propanol (d) 1-Propenol 34)
34) An alkyl halide on reaction with sodium in the presence of ether gives 2, 2, 5, 5-An alkyl halide on reaction with sodium in the presence of ether gives 2, 2, 5,
5-tetramethyl hexane. The alkyl halide possibly is tetramethyl hexane. The alkyl halide possibly is
(a) 1-Chloropentane (b) 1-Chloro-2, 2-dimethyl propane
(a) 1-Chloropentane (b) 1-Chloro-2, 2-dimethyl propane (c) 3-Chloro-2, 2-dimethyl(c) 3-Chloro-2, 2-dimethyl butane (d) 2-Chloro-2-methyl butane
35)
35) Which of the following does not Which of the following does not form Grignard reagent on reaction with Mg in form Grignard reagent on reaction with Mg in thethe
presence of ether? presence of ether?
(a) Chloroethane (b) 1
(a) Chloroethane (b) 1-Chloropropane (c) Bromobenzene (d) Chlorobenzene-Chloropropane (c) Bromobenzene (d) Chlorobenzene
36) Chlorobenzene on reaction with CH
36) Chlorobenzene on reaction with CH33CI in the presence of AICICI in the presence of AICI33 will givewill give
(a) Toluene (b) m-Chloro toluene (c) p-Chloro
(a) Toluene (b) m-Chloro toluene (c) p-Chloro toluene (d) A mixture of o-and p-toluene (d) A mixture of o-and p-chlorotoluence
chlorotoluence
37) Most reactive halide towards SN1 reaction 37) Most reactive halide towards SN1 reaction isis (a) n-Butyl chloride (b)
(a) n-Butyl chloride (b) sec-Butyl chloride (c) tert-Butyl chloride (d) Allyl chloridesec-Butyl chloride (c) tert-Butyl chloride (d) Allyl chloride 38) Mg reacts with RBr best in
38) Mg reacts with RBr best in (a) C
(a) C22HH55OCOC22HH55 (b) C(b) C66HH55OCHOCH33 (c) C(c) C66HH55 N(CH N(CH33))22 (d) Equally in all the three.(d) Equally in all the three.
39)
39) Photochemical chlorination of an alkane Photochemical chlorination of an alkane is initited by a process of is initited by a process of
(a) Pyrolysis (b) Peroxidation (c) Homolysis (d) Rearrangement (a) Pyrolysis (b) Peroxidation (c) Homolysis (d) Rearrangement 40)
40) Allylic bromination of olenfins is generally carried out withAllylic bromination of olenfins is generally carried out with
(a) Phenyl magnesium bromide (b) Dibromo succinic acid (c) N-Bromo succinimide (a) Phenyl magnesium bromide (b) Dibromo succinic acid (c) N-Bromo succinimide (d) Pyridiine perbromide
(d) Pyridiine perbromide 41)
41) 2, 2-Dichloropropane on alkaline h2, 2-Dichloropropane on alkaline hydrolysis givesydrolysis gives
(a) 2, 2-Propanediol (b) Propanol (c) Propanone (d)Ethanal (a) 2, 2-Propanediol (b) Propanol (c) Propanone (d)Ethanal 42)
42) Grigand reagent is prepared by the reaction between alkyl halide andGrigand reagent is prepared by the reaction between alkyl halide and (a) zinc in the
(a) zinc in the presence of alcohol (b) magnesium in the presence of alcohol (b) magnesium in the presence of dry ether (c)presence of dry ether (c) magnesium in the presence of a
magnesium in the presence of alcohol (d) magnesium in the presence of moist lcohol (d) magnesium in the presence of moist etherether
43) Which one of the
43) Which one of the following is likely to give a precipitate with AgNOfollowing is likely to give a precipitate with AgNO33 solution?solution?
(a) CCI
(a) CCI44 (b) CH(b) CH33-CH-CH22-CI (c) (CH-CI (c) (CH33))33CCI (d) CHCCCI (d) CHC
Hint:
Hint: 3300 halides undergo Nucleophilic substitution most readily. (CHhalides undergo Nucleophilic substitution most readily. (CH 3
3))33CCI is a 3CCI is a 300
halide. halide.
44) An alkyl chloride produces a single alkene on reaction with sodium ethoxide and 44) An alkyl chloride produces a single alkene on reaction with sodium ethoxide and ethanol. The alkene
ethanol. The alkene further undergoes hydrogenation to yield-2-methylbutane. Identifyfurther undergoes hydrogenation to yield-2-methylbutane. Identify the alkyl chloride from amongst the following.
the alkyl chloride from amongst the following. (a) CICH
(a) CICH22 C(CHC(CH33))22CHCH33 (b) CICH(b) CICH22CHCH22CHCH22CHCH22CHCH33
(c) CICH
(c) CICH22CH(CHCH(CH33)CH)CH22CHCH33 (d) CH(d) CH33C(CI)(CHC(CI)(CH33)CH)CH22CHCH33
45)
45) Geminal dihalides on hydrolysis giveGeminal dihalides on hydrolysis give (a) Ketones (b) Aldehydes (c) Ketones and a
(a) Ketones (b) Aldehydes (c) Ketones and a ldehydes (d) Alcoholsldehydes (d) Alcohols
46) When ethyl iodide is treated with moist silver oxide, the product formed is 46) When ethyl iodide is treated with moist silver oxide, the product formed is (a) C
(a) C22HH55OH (b) COH (b) C22HH55OCOC22HH55 (c) CH(c) CH33CHO (d) none of aboveCHO (d) none of above
47)
47) The reaction of an alkyl halide with RCOOAg producesThe reaction of an alkyl halide with RCOOAg produces (a) ester (b) ether (c) aldehyde
(a) ester (b) ether (c) aldehyde (d) ketone(d) ketone 48)
48) The reaction of 4-bromobenzyl chloride with NaCN The reaction of 4-bromobenzyl chloride with NaCN in ethanol leads toin ethanol leads to (a) 4-Bromobenzyl cyanide (b)
(a) 4-Bromobenzyl cyanide (b) 4-Cyanobenzyl chloride (c) 4-Cyanobenzyl cyanide4-Cyanobenzyl chloride (c) 4-Cyanobenzyl cyanide (d) 4-Bromo-2-cyanobenzyl chloride
(d) 4-Bromo-2-cyanobenzyl chloride 49)
49) Grignard reagent is not prepared in aqueous medium but prepared in ether medium,Grignard reagent is not prepared in aqueous medium but prepared in ether medium,
because because
(a) the reagent is highly reactive in ether (b) the reagent is insoluble in water (c) the (a) the reagent is highly reactive in ether (b) the reagent is insoluble in water (c) the reagent becomes inactive in water (d)
reagent becomes inactive in water (d) the reagent reacts with waterthe reagent reacts with water 50)
50) Ethylbromide reacts with sodium-lead alloy to formEthylbromide reacts with sodium-lead alloy to form (a) Tetraethyl lead (b) Ethyl
(a) Tetraethyl lead (b) Ethyl sodium (c) Ethane (d) Ethenesodium (c) Ethane (d) Ethene
51) The order of reactivities of the
51) The order of reactivities of the following alkyl halides of a SN2 reaction isfollowing alkyl halides of a SN2 reaction is (a) RF >
(a) RF > RCl > RBr RCl > RBr > RI > RI (b) RF (b) RF > RBr > > RBr > RCl > RI RCl > RI (c) RCl > (c) RCl > RBr > RF RBr > RF > RI > RI (d) RI (d) RI >> RBr > RCl > RF
RBr > RCl > RF
Hint: The alkyl halide
Hint: The alkyl halide having weaker C-X bond has greater reactivity.having weaker C-X bond has greater reactivity. 52)
52) An alkyl halide may be converted into an alcohol byAn alkyl halide may be converted into an alcohol by (a) Addition (b) Elimination (c) Substitution (d)
53) For the reaction 53) For the reaction
C2H5OH + HX to C2H5X
C2H5OH + HX to C2H5X + H2O the order of reactivity is+ H2O the order of reactivity is (a) HCI > HBr > HI (b) HI >HBr >HCI
(a) HCI > HBr > HI (b) HI >HBr >HCI (c) HBr >HCI >HI (d) HI >HCI >HBr. (c) HBr >HCI >HI (d) HI >HCI >HBr.
54)
54) 1-Phenyl-2-chloropropane when treated with alcoholic KOH gives...as the major 1-Phenyl-2-chloropropane when treated with alcoholic KOH gives...as the major
product product
(a) 1-Phenylopropene (b) 3-Phenylpropene (c) 1-Phenyl-2-propanol (d) (a) 1-Phenylopropene (b) 3-Phenylpropene (c) 1-Phenyl-2-propanol (d) 3-Phenyl-1-propanol
propanol
Hint: 1-Phenylopropene is more stable because double bond is
Hint: 1-Phenylopropene is more stable because double bond is in conjugation within conjugation with benzene ring and is
benzene ring and is more substitutedmore substituted
55) Which of the following is most reactive towards Nucleophilic substitution reaction? 55) Which of the following is most reactive towards Nucleophilic substitution reaction? (a) KCN (b) AgCN (c) CH
(a) KCN (b) AgCN (c) CH33CN (d) CHCN (d) CH33 NC NC
56) Which one of the
56) Which one of the following is most reactive towards Nucleophilic substitutionfollowing is most reactive towards Nucleophilic substitution reaction?
reaction? (a) CH
(a) CH22 = CH - CI (b) C= CH - CI (b) C66HH55CI (c) CHCI (c) CH33CH = CH - CI (d) CICHCH = CH - CI (d) CICH22-CH=CH-CH=CH22
57) Which of the following is not true for SN1 reaction? 57) Which of the following is not true for SN1 reaction?
(a) They occur through a single step concerted reaction (b) They are favoured by polar (a) They occur through a single step concerted reaction (b) They are favoured by polar solvents (c) 30 alkyl halides generally react through this mechanism
solvents (c) 30 alkyl halides generally react through this mechanism (d) Concentration of (d) Concentration of nucleophile does not affect the rate of such reactions
nucleophile does not affect the rate of such reactions
Hint: SN1 reactions occur through a two step
Hint: SN1 reactions occur through a two step mechanism involving intermediatemechanism involving intermediate carbocation and not through single step
carbocation and not through single step reaction.reaction.
58) Chlorination of toluene in the presence in the presence of light and heat followed by 58) Chlorination of toluene in the presence in the presence of light and heat followed by treatment with aqueous NaOH gives
treatment with aqueous NaOH gives
(a) o-Cresol (b) p-Cresol (c) 2, 4-Dihydroxytoluene (d) Benzoic acid (a) o-Cresol (b) p-Cresol (c) 2, 4-Dihydroxytoluene (d) Benzoic acid 59)
59) Only two isomeric monochloro derivatives are possible for Only two isomeric monochloro derivatives are possible for (a) n-Butane (b) 2, 4-Dimethulpentane (c) Benzene (d) 2,
(a) n-Butane (b) 2, 4-Dimethulpentane (c) Benzene (d) 2, 2-Dimethylopropane2-Dimethylopropane 60)
60) The major product of reaction The major product of reaction of alcoholic silver nitriate with ethyl bromide isof alcoholic silver nitriate with ethyl bromide is (a) Ethane (b) Nitroethane (c) Ethyl
(a) Ethane (b) Nitroethane (c) Ethyl nitrite (d) Ethyl alcoholnitrite (d) Ethyl alcohol 61)
61) Isopropyliden on reaction with aqueous KOH yieldsIsopropyliden on reaction with aqueous KOH yields
(a) 1, 2-Propanediol (b) Propanone (c) Propanal (d) iso-Propyl alcohol (a) 1, 2-Propanediol (b) Propanone (c) Propanal (d) iso-Propyl alcohol 62)
62) IUPAC name of Gannexane isIUPAC name of Gannexane is
(a) Hexachlorobenzene (b) Benzene hexachloride (c) 1, 2, 3, 4, (a) Hexachlorobenzene (b) Benzene hexachloride (c) 1, 2, 3, 4, 5, 6-5, 6-Hexachlorocyclohexane (d) None of these
Hexachlorocyclohexane (d) None of these 63)
63) Chloral on treatment with aqueous NaOH produces?Chloral on treatment with aqueous NaOH produces?
(a) Ethanal (b) Propanol (c) Chloroform (d) Chloroethanal (a) Ethanal (b) Propanol (c) Chloroform (d) Chloroethanal
64) n-Propyl bromide on treatment with ethanolic potassium hydroxide produces 64) n-Propyl bromide on treatment with ethanolic potassium hydroxide produces
(a) Propane (b) Propene (c) Propyne (d) Propanol (a) Propane (b) Propene (c) Propyne (d) Propanol 65)
65) 'Westron' is'Westron' is (a) 1, 1, 2,
(a) 1, 1, 2, 2-Tetrachloroethane (b) 1, 1-Dichloropropanone (c) 1, 3-2-Tetrachloroethane (b) 1, 1-Dichloropropanone (c) 1, 3-Dichloropropanone (d) 1, 2-Dichloroethene
Dichloropropanone (d) 1, 2-Dichloroethene 66)
66) 'Mustard gas' is'Mustard gas' is
(a) 2, 2-Dichlorodiethyl sulphide (b) Dichlorodimethyl sulphide (c) Dichlorodiethyl (a) 2, 2-Dichlorodiethyl sulphide (b) Dichlorodimethyl sulphide (c) Dichlorodiethyl ether (d) None of these
ether (d) None of these 67)
67) 'Westrosol' is'Westrosol' is
(a) Trichloroethene (b) 1, 1, 1-Trichloroethane (c) 1, 1, 2-Trichloroethane (d) (a) Trichloroethene (b) 1, 1, 1-Trichloroethane (c) 1, 1, 2-Trichloroethane (d) Trichloromethanoel
Trichloromethanoel
68) Which of the following would n
68) Which of the following would not yield iodoform on reaction with NaOH and ot yield iodoform on reaction with NaOH and II22??
(a) Ethanol (b) Propanal (c) Propanone (d) 2-Propanol (a) Ethanol (b) Propanal (c) Propanone (d) 2-Propanol
69)
69) On Warming with silver powder, chloroform is converted intoOn Warming with silver powder, chloroform is converted into
(a) acetylene (b) hexachloroethane (c) 1, 1,
Hint: 2CHCI
Hint: 2CHCI33 + 6Ag to HC equal CH + 6AgCI.+ 6Ag to HC equal CH + 6AgCI.
70) The starting substance for the preparation o
70) The starting substance for the preparation of CHI3 is any of the following exceptf CHI3 is any of the following except (a) C2H
(a) C2H55OH (b) CHOH (b) CH33OH (c) CHOH (c) CH33CHO (d) CHCHO (d) CH33-CO-CH-CO-CH33
71) In the preparation of CHCI3 from ethanol and bleaching powder, the latter provides 71) In the preparation of CHCI3 from ethanol and bleaching powder, the latter provides (a) CI2 (b) Ca(OH)2 (c) Both (d) None
(a) CI2 (b) Ca(OH)2 (c) Both (d) None
72)
72) Which of the following with aqueous Which of the following with aqueous KOH will give acetaldhydeKOH will give acetaldhyde
(a) 1, 2-Dichloroethane (b) 1, 1-Dichloroethane (c) Chloroacetic acid (d) Ethyl (a) 1, 2-Dichloroethane (b) 1, 1-Dichloroethane (c) Chloroacetic acid (d) Ethyl chloride
chloride
73) Benzene on reaction with CCI
73) Benzene on reaction with CCI44 in the presence of AICIin the presence of AICI33 givesgives
(a) Benzotrichloride (b) DDT (c) Triphenyl chlorobenzene
(a) Benzotrichloride (b) DDT (c) Triphenyl chlorobenzene (d) Triphenyl chloromethane(d) Triphenyl chloromethane
74)
74) Carbylamine test is performed in alcoholic KOH by heating Carbylamine test is performed in alcoholic KOH by heating a mixture of a mixture of
(a) Chloroform and silver powder (b) Chloroform and a
(a) Chloroform and silver powder (b) Chloroform and a primary amineprimary amine (c) An alkyl halide and a primary amine (d) An alkyl cyanide and a
(c) An alkyl halide and a primary amine (d) An alkyl cyanide and a primary amineprimary amine
75) Which of the following compounds
75) Which of the following compounds is used as a refrigerant?is used as a refrigerant? (a) CCI
(a) CCI44 (b) CH(b) CH22CICI22(c) CF(c) CF44 (d) CF(d) CF22CICI22
76) When ethanol and I2 are heated in the presence of Na
76) When ethanol and I2 are heated in the presence of Na22COCO33, the yellow crystals, the yellow crystals
obtained are of obtained are of (a) C
(a) C22HH55I (b) CHI (b) CH33I (c) CHII (c) CHI33 (d) CH(d) CH22II22
77)
77) Idoform in medicines is used asIdoform in medicines is used as
(a) Antibiotic (b) Antiseptic (c) Analgesic (d) Antipyretic (a) Antibiotic (b) Antiseptic (c) Analgesic (d) Antipyretic 78)
78) DDT is formed formDDT is formed form
(a) Benzene and chlorobenzene (b) Chloral and chlorobenzene (c) Chloral and (a) Benzene and chlorobenzene (b) Chloral and chlorobenzene (c) Chloral and benzene (d) Chlorobenzene and chlorine
benzene (d) Chlorobenzene and chlorine
79) 1-Chlorobutane on reaction with alcoholic potash gives 79) 1-Chlorobutane on reaction with alcoholic potash gives
(a) 1-Butene (b) 1-Butanol (c) 2-Butene (d) 2-Butanol (a) 1-Butene (b) 1-Butanol (c) 2-Butene (d) 2-Butanol
80) Reaction of ethylamine with chloroform in alcoholic KOH produces 80) Reaction of ethylamine with chloroform in alcoholic KOH produces (a) CH
(a) CH33OH (b) CHOH (b) CH33 NC (c) C NC (c) C22HH55 NC (d) C NC (d) C22HH55CNCN
81) Chloroform on reaction with conc. HNO
81) Chloroform on reaction with conc. HNO33yieldsyields
(a) Nitromethane (b) Chloropicrin (c) Chloroprene (d) CO
(a) Nitromethane (b) Chloropicrin (c) Chloroprene (d) CO22 NO NO22 and Hand H22OO
82) Industrial preparation of chloroform employs acetone and 82) Industrial preparation of chloroform employs acetone and (a) CI
(a) CI22 (b) COCI(b) COCI22 (c) NaCI (d) Calcium hypochlorite(c) NaCI (d) Calcium hypochlorite
83) Chlorination of CS2 gives 83) Chlorination of CS2 gives (a) CHCI
(a) CHCI33 (b) CCI(b) CCI44 (c) CS(c) CS22CICI22(d) COCI(d) COCI22
84) What happens when CCI
84) What happens when CCI44is treated with AgNOis treated with AgNO33 solution?solution?
(a) NO
(a) NO22 will be evolved (b) A white ppt. will be evolved (b) A white ppt. of AgCI will from (c) CCIof AgCI will from (c) CCI44 will dissolve inwill dissolve in
AgNO
AgNO33 solution (d) Nothing will happensolution (d) Nothing will happen
85)
85) Which of the following rectants will not liberate ethyne?Which of the following rectants will not liberate ethyne?
(a) Ethylene bromide and alc. KOH (b) Ethylidene bromide and alc. KOH (c) (a) Ethylene bromide and alc. KOH (b) Ethylidene bromide and alc. KOH (c) Chloroform and silver (d) Aluminium carbide and
Chloroform and silver (d) Aluminium carbide and waterwater
86) Which one of the
86) Which one of the following has nil dipole moment ?following has nil dipole moment ? a)
a) Toluene Toluene b) b) m-dichlorobenzene m-dichlorobenzene c) c) o-dichlorobenzene o-dichlorobenzene d) d) p-dichlorobenzenep-dichlorobenzene
Hint:p-Dichlorobenzene has zero dipole moment because the two C-Cl bonds are Hint:p-Dichlorobenzene has zero dipole moment because the two C-Cl bonds are oppositely directed.
oppositely directed. 87)
87) Acetylene is treated with excess HBr and the Acetylene is treated with excess HBr and the resultant compound is then heated resultant compound is then heated withwith
zinc dust. The final product will be zinc dust. The final product will be
(a) Ethylene (b) Acetylene (c) 1-Butene (d) 2-Butene (a) Ethylene (b) Acetylene (c) 1-Butene (d) 2-Butene 88)
88) Iodoform is a...at room temperatureIodoform is a...at room temperature (a) Gas (b) Thick viscous liquid (c)
(a) Gas (b) Thick viscous liquid (c) Volatile liquid (d) Crystalline solidVolatile liquid (d) Crystalline solid 89)
(a) Explosion takes place (b) Polymerization takes
(a) Explosion takes place (b) Polymerization takes place (c) Poisonous gas phosgeneplace (c) Poisonous gas phosgene is formed (d) No reaction takes place
is formed (d) No reaction takes place 90)
90) When chloroform is exposed to air and sunlight, it givesWhen chloroform is exposed to air and sunlight, it gives (a) Mustard gas (b) Lewisite
(a) Mustard gas (b) Lewisite (c) Carbonyl chloride (d) Carbon tetrachloride(c) Carbonyl chloride (d) Carbon tetrachloride 91)
91) When chloroform reacts with acetone, the product isWhen chloroform reacts with acetone, the product is
(a) Chloral (b) Dichloroacetone (c) Chloropicrin (d) Chloretone (a) Chloral (b) Dichloroacetone (c) Chloropicrin (d) Chloretone
92) Which of the following is an anaesthetic? 92) Which of the following is an anaesthetic? (a) CCI4 (b) CH3CI (c) C2H5OH (d) CHCI3 (a) CCI4 (b) CH3CI (c) C2H5OH (d) CHCI3
93)
93) Which of the following represents a gem-dihalide?Which of the following represents a gem-dihalide?
(a) Ethylene chloride (b) 2, 2-dichloropropane (c) 1, 3-dichloropropane (d) 1, 2 (a) Ethylene chloride (b) 2, 2-dichloropropane (c) 1, 3-dichloropropane (d) 1, 2 --dichloropropane
dichloropropane
94) Which of the following will react with water? 94) Which of the following will react with water? (a) CHCl
(a) CHCl33 (b) CCl(b) CCl33.CHO .CHO (c) (c) CClCCl44 (d) ClCH(d) ClCH22.CH.CH22ClCl
95)
95)Chlorobenzene can be prepared by reacting benzenediazonium chloride withChlorobenzene can be prepared by reacting benzenediazonium chloride with (a) Hydrochloric acid (b) Cuprous chloride (c) Chloride in presence of anhydrous (a) Hydrochloric acid (b) Cuprous chloride (c) Chloride in presence of anhydrous aluminium chloride (d) Nitrous acid
aluminium chloride (d) Nitrous acid 96)
96) Chlorination of toluene in the presence Chlorination of toluene in the presence of light and heat followed by treatment withof light and heat followed by treatment with aqueous NaOH gives
aqueous NaOH gives
(a) o-Cresol (b) p-Cresol (c) 2, 4-Dihydroxytoluene (d) Benzyl alcohol (a) o-Cresol (b) p-Cresol (c) 2, 4-Dihydroxytoluene (d) Benzyl alcohol 97)
97) Chlorobenzene can be prepared by reacting aniline withChlorobenzene can be prepared by reacting aniline with
(a) Hydrochloric acid (b) Cuprous chloride (c) Chlorine in the presence of
(a) Hydrochloric acid (b) Cuprous chloride (c) Chlorine in the presence of aluminiumaluminium chloride (d) Nitrous acid followed by
chloride (d) Nitrous acid followed by heating with cuprousheating with cuprous
98) Toluene when refluxed
98) Toluene when refluxed with Br2 in the presence light mainly giveswith Br2 in the presence light mainly gives
(a) o-Bromotoluene (b) p-Bromotoluene (c) Mixture of o-and p-bromotoluene (d) Benzyl (a) o-Bromotoluene (b) p-Bromotoluene (c) Mixture of o-and p-bromotoluene (d) Benzyl bromide
bromide
99)
99) Benzene diazonium chloride can be converted into flurorobenzene byBenzene diazonium chloride can be converted into flurorobenzene by
(a) Sandmeyer's reaction (b) Gattermann's reaction (c) Balz shiemann reaction (d) (a) Sandmeyer's reaction (b) Gattermann's reaction (c) Balz shiemann reaction (d) Fitting reaction
Fitting reaction 100)
100) Bromination of toluene givesBromination of toluene gives
(a) Only m-substituted product (b) Only p-substituted product (c) Mixture of
(a) Only m-substituted product (b) Only p-substituted product (c) Mixture of ortho- ortho-and para-substituted products (d) Mixture of ortho ortho-and
and para-substituted products (d) Mixture of ortho and m-substituted productsm-substituted products
101) Benzene reacts with CI2
101) Benzene reacts with CI2 in the presence of FeCI3 (or halogen in the presence of FeCI3 (or halogen carrier) and incarrier) and in absence of sunlight to form(1) Benzyl chloride (b) Benzal
absence of sunlight to form(1) Benzyl chloride (b) Benzal chloride (c) Chlorobenzene (d)chloride (c) Chlorobenzene (d) Benzenehexachloride
Benzenehexachloride
102)
102) Friedel-Crafts reaction of bromobenzene with methyl iodide givesFriedel-Crafts reaction of bromobenzene with methyl iodide gives
(a) o-Bromotoluene (b) p-Bromotoluene (c) o-and-p-Bromotoluenes (d) (a) o-Bromotoluene (b) p-Bromotoluene (c) o-and-p-Bromotoluenes (d) m-Bromotoluene
Bromotoluene
103) The decreasing order o
103) The decreasing order of reactivity of m-nitro-bromobenzene (I); 2,4,6-f reactivity of m-nitro-bromobenzene (I);
2,4,6-trinitrobromobenzene (II); p-nitrobromobenzene (III) ; 2,4-dinitrobromobenzene (IV); trinitrobromobenzene (II); p-nitrobromobenzene (III) ; 2,4-dinitrobromobenzene (IV); Towards OH- ions is
Towards OH- ions is
(a) I >II >III >IV (b) II >IV >III >I (a) I >II >III >IV (b) II >IV >III >I (c) IV >II >III >I (d) II >IV >I >III (c) IV >II >III >I (d) II >IV >I >III
104)
104) When chloroform reacts with benzene in the presence of aluminium chloride, theWhen chloroform reacts with benzene in the presence of aluminium chloride, the
product formed is product formed is
(a) 1, 1, 1-Trichloroethane (b) Trichlorophenyl methane (c) Triphenyl methane (d) (a) 1, 1, 1-Trichloroethane (b) Trichlorophenyl methane (c) Triphenyl methane (d) Triphenyl chloromethane
Triphenyl chloromethane
105) Which of the following groups is a
105) Which of the following groups is an ortho-para directing as well as deactivating an ortho-para directing as well as deactivating a group?
group? (a)
(a) OH OH (b) (b) NHNH22 (c) CH(c) CH33 (d) CI(d) CI
106) The order of reactivity of various alkyl halides
(a) 3
(a) 300> 2> 200 >1 >1 (b) (b) 1100 >2>200>3>3
(c) 3
(c) 300 = 2= 200 = 1= 100 (d) 1(d) 100 >3>300 >2>200
107)
107) Alkyl halides can be converted to Alkyl halides can be converted to ethers throughethers through
(a) Frankland reaction (b) Williamson synthesis (c) Fittig rea
(a) Frankland reaction (b) Williamson synthesis (c) Fittig rea ction (d) Grignardction (d) Grignard reaction
reaction
108) Which of the following groups is o
108) Which of the following groups is ortho-para directing as well as deactivating, whenrtho-para directing as well as deactivating, when attached to benzene ring?
attached to benzene ring? (a) NO
(a) NO22 (b) (b) OH OH (c) (c) OCHOCH33 (d) Cl(d) Cl
109) The order of reactivity of various alkyl halides
109) The order of reactivity of various alkyl halides towards nucleophilic substitutiontowards nucleophilic substitution follows the order:
follows the order: (a) RI
(a) RI > RBr > RBr >RCl >RF >RCl >RF (b) RF (b) RF >RCl >RBr >RCl >RBr >RI >RI (c) RCl (c) RCl >RBr >RI >RBr >RI >RF >RF (d) RBr (d) RBr >RI>RI >RCl >RF
>RCl >RF
110) The products of reaction
110) The products of reaction of alcoholic silver nitrite with ethyl bromide areof alcoholic silver nitrite with ethyl bromide are
(a) Ethane (b) Ethene (c) Nitroethane
(a) Ethane (b) Ethene (c) Nitroethane (d) Ethyne(d) Ethyne
111) A compound
111) A compound that will form an offensive smell when heated with chloroform andthat will form an offensive smell when heated with chloroform and alcoholic potash is
alcoholic potash is (a) C
(a) C22HH55 NH NH22 (b) (C(b) (C22HH55))22 NH NH (c) (c) (CH(CH33))33 N N (d) (d) CHCH33CNCN
112) The correct order of b
112) The correct order of boiling points isoiling points is (a) CH
(a) CH33I > CHI > CH33Br >CHBr >CH33Cl >CHCl >CH33F F (b) (b) CHCH33F >CHF >CH33Cl >CHCl >CH33Br >CHBr >CH33II
(c) CH
(c) CH33I >CHI >CH33I >CHI >CH33F >CHF >CH33Cl >CHCl >CH33Br Br (d) (d) CHCH33Br >CHBr >CH33Cl >CHCl >CH33F >CHF >CH33II
113)
113) Dehalogenation of meso-2, 3-dibromobutane results inDehalogenation of meso-2, 3-dibromobutane results in
(a) cis-2-Butene (b) Butene (c) n-Butane (d) A mixture of cis-and (a) cis-2-Butene (b) Butene (c) n-Butane (d) A mixture of cis-and trans-2-Butene
Butene 114)
114) Which of the following statements is/are not correct?Which of the following statements is/are not correct?
(a) Alkyl iodides are heavier than water (b) Alkyl bromides are lighter than water (c) (a) Alkyl iodides are heavier than water (b) Alkyl bromides are lighter than water (c) Ethyne reacts with excess HCl to form ethylidene
Ethyne reacts with excess HCl to form ethylidene dichloride (d) Vinyl chloride doesdichloride (d) Vinyl chloride does not undergo nucleophilic substitution easily
not undergo nucleophilic substitution easily 115)
115) Which of the following reactions do not result in the formation of a new C-C bond?Which of the following reactions do not result in the formation of a new C-C bond? (a) Ullmann reaction (b) Fitting
(a) Ullmann reaction (b) Fitting reaction (c) Williamson synthesis (d) Wurtz reactionreaction (c) Williamson synthesis (d) Wurtz reaction 116)
116) Which of the following represents a geminal dihalide?Which of the following represents a geminal dihalide?
(a) Ethylene dichloride (b) 2, Dichloropropane, (c) 1, 3-Dichloropropane (d) 1, (a) Ethylene dichloride (b) 2, Dichloropropane, (c) 1, 3-Dichloropropane (d) 1, 2-Dichloropropane
Dichloropropane
117) The order of reactivity of alkyle halides through 117) The order of reactivity of alkyle halides through SS N N11 isis
a) 3
a) 300>2>200>1>100 b) 2b) 200>1>100 >3>300 c) 1c) 100>2>200 >3>300 d) 2d) 200>3>300 >1>100
118)
118) Carbon tetrachloride does not have net dipole moment because of Carbon tetrachloride does not have net dipole moment because of (1) Its planar structure (b) Its regular
(1) Its planar structure (b) Its regular tetrahedral structure (c) Similar sizes of tetrahedral structure (c) Similar sizes of carbon and chlorine atoms (d) Similar
carbon and chlorine atoms (d) Similar electron affinities of carbon and chlorineelectron affinities of carbon and chlorine 119)
119) Carbylamine test is performed in alcoholic KOH by heating a Carbylamine test is performed in alcoholic KOH by heating a mixture of mixture of (a) Chloroform and silver powder (b) Trihalogenated methane and
(a) Chloroform and silver powder (b) Trihalogenated methane and a primary aminea primary amine (c) An alkyl halide and a primary amine (d) An alkyl cyanide and a
(c) An alkyl halide and a primary amine (d) An alkyl cyanide and a primary amineprimary amine 120)
120) Chlorobenzene can be prepared by reacting aniline withChlorobenzene can be prepared by reacting aniline with
(1) Hydrochloric acid (b) Cuprous chloride (c) Chlorine in hte presence of
(1) Hydrochloric acid (b) Cuprous chloride (c) Chlorine in hte presence of anhydrousanhydrous aluminium chloride (d) Nitrous acid followed
aluminium chloride (d) Nitrous acid followed by heating with cuprous chlorideby heating with cuprous chloride Hint:Sandmeyer's reaction
Hint:Sandmeyer's reaction 121)
121) Out of the following compounds, which Out of the following compounds, which one will have zero dipole moment?one will have zero dipole moment? (a) 1, 1-Dichloroethylene (b) cis-1, Dichloroethylene (c) trans-1,
(a) 1, 1-Dichloroethylene (b) cis-1, Dichloroethylene (c) trans-1, 2-Dichloroethylene (d) None of these compounds
Dichloroethylene (d) None of these compounds
Hint:trans-1, 2-Dichloroethylene has zero dipolemoment because dipoles of the two Hint:trans-1, 2-Dichloroethylene has zero dipolemoment because dipoles of the two C-Cl bonds are oppositely directed and
