Chemistry
Chemistry
Out of about 30 questions that appeared on the test, 20 are given below. Out of about 30 questions that appeared on the test, 20 are given below.
Which one of these processes is used
Which one of these processes is used for the preparation of ethers?for the preparation of ethers? Bayer's Process
Bayer's Process
Kolbe's electrolytic process Kolbe's electrolytic process Williamsons Reaction Williamsons Reaction Haber's Process
Haber's Process
The total number of crystal systems are: The total number of crystal systems are:
three three five five seven seven infinite infinite
Which one of the following is a secondary alcohol? Which one of the following is a secondary alcohol?
((aa)) ((bb)) ((cc))
(d) None of the above (d) None of the above
How many amino acid units are
How many amino acid units are there in DNA (deoxyribonucleic acid)?there in DNA (deoxyribonucleic acid)? 10 10 18 18 27 27 30 30
What is the formula of Epsom salt? What is the formula of Epsom salt?
MgSO
MgSO44.7H.7H22OO MgSO
MgCO
MgCO33.7H.7H22OO none of the above none of the above
Maximum temperature at which epsom salt remains is Maximum temperature at which epsom salt remains is
100°C 100°C 150°C 150°C 250°C 250°C 300°C 300°C
Which temperature is not present in the lifecycle of
Which temperature is not present in the lifecycle of epsom salt?epsom salt? 200°C 200°C 300°C 300°C 400°C 400°C 500°C 500°C
The size and shape of orbitals are given by The size and shape of orbitals are given by
principal quantum number. principal quantum number.
principal and magnetic quantum number. principal and magnetic quantum number.
principal, angular and magnetic quantum number. principal, angular and magnetic quantum number. None of these
None of these Glacial acetic acid is Glacial acetic acid is
anhydrous. anhydrous. concentrated. concentrated. dilute. dilute. very dilute. very dilute.
Which will have a greater bo
Which will have a greater boiling point?iling point? Ethane Ethane Methane Methane n-Butane n-Butane 2-Butene 2-Butene
The study of thermochemistry is based on The study of thermochemistry is based on
Dalton's atomic theory Dalton's atomic theory 1st law of thermodynamics 1st law of thermodynamics 2nd law of thermodynamics 2nd law of thermodynamics 3rd law of thermodynamics 3rd law of thermodynamics Which prevents wood from moisture? Which prevents wood from moisture?
Alcohol Alcohol Aldehyde Aldehyde Acid Acid None None
To prepare a carboxylic acid
To prepare a carboxylic acid KCN is treated with?KCN is treated with? Alcohol Alcohol Aldehyde Aldehyde Alkyl halide Alkyl halide Alkene Alkene
Questions regarding molality and
Questions regarding molality and molarity.molarity. Definition of molarity
Definition of molarity
Hydrogen bonding is not given by Hydrogen bonding is not given by
Chlorine Chlorine Sulphur Sulphur Nitrogen Nitrogen Fluorine Fluorine Maximum yield of N
Maximum yield of N22+ 3H+ 3H22 —> —> 2NH2NH33 is given atis given at
Low temp. and low pressure Low temp. and low pressure High temp. and low pressure High temp. and low pressure High temp. and high pressure High temp. and high pressure Low temp. and high pressure Low temp. and high pressure
Pure silicon exists as Pure silicon exists as
semi-conductor semi-conductor metal metal non-metal non-metal superconductor superconductor Glass is made of ___. Glass is made of ___.
Which is the hardest metal? Which is the hardest metal?
Lithium (Li) Lithium (Li) Sodium (Na) Sodium (Na) Potassium (K) Potassium (K) Magnesium (Mg) Magnesium (Mg)
Mathematics
Mathematics
n nCC r r = ?= ? n-1 n-1CC r r n nCC r-n r-n n nCC n-r n-r None None ιι5757= ?= ? --ιι 1 1 ιι 0 0 Which is correct? Which is correct?If a matrix of order 3 x
If a matrix of order 3 x 4 is A, -A will be a 4 is A, -A will be a matrix __ of A?matrix __ of A? Multiplicative inverse Multiplicative inverse 4 x 3 order 4 x 3 order conjugate conjugate None None
Questions regarding the use of quadratic formula. Questions regarding the use of quadratic formula. Consider the series 1 + 3 + 5 + 7 + .... S
Consider the series 1 + 3 + 5 + 7 + .... S2828= ?= ? 1170 1170 2700 2700 1800 1800 1500 1500
Questions related to Exercise 6.11 of the
Questions related to Exercise 6.11 of the FSc Mathematics Textbook (1FSc Mathematics Textbook (1ststYear).Year).
Questions related to probability. Questions related to probability. What will be the 8
What will be the 8ththterm in the binomial expansion of (term in the binomial expansion of ( x x - 2- 2 y y))2727??
If sec
If sec θ θ = 9/4, cos= 9/4, cos θ θ == 4/9 4/9 3/6 3/6 8/3 8/3 1/4 1/4
Questions requiring to calculate areas of triangles from the given
Questions requiring to calculate areas of triangles from the given lengths of the threelengths of the three sides, using Hero's formula.
sides, using Hero's formula.Note:Note: Answer choices were given in fractions.Answer choices were given in fractions. Formulae of circum-radius, inscribed radius and escribed radius.
Formulae of circum-radius, inscribed radius and escribed radius.
Questions related to the calculation of circum-radius, inscribed radius and escribed Questions related to the calculation of circum-radius, inscribed radius and escribed
radius. (Much like those in the textbooks.) radius. (Much like those in the textbooks.) If
If f f (( x x,, y y) = 0.5) = 0.5 x x + 8+ 8 y y,, f f (0, 0) =(0, 0) = 5 5 8 8 1 1
0 0
What is the derivative of the function
What is the derivative of the function f f (( x x) =) =
?? 0 0 1 1 2 2 -1 -1
What is the derivative of the function
What is the derivative of the function f f (( x x) = () = ( x x22+ 2)+ 2)100100??
100( 100( x x22 + 2)+ 2)9999 200( 200( x x22 + 2)+ 2)9999 100( 100( x x22 + 2)+ 2)101101 99( 99( x x22 + 2)+ 2)100100 FPRIVATE "TYPE=PICT;ALT=int
FPRIVATE "TYPE=PICT;ALT=integral of sin x w.r.t. x egral of sin x w.r.t. x from o to Pi"from o to Pi"
= ? = ? 0 0 1 1 2 2 4 4
Slope of a line parallel to x-axis is Slope of a line parallel to x-axis is
1 1 0 0 ∞ ∞ 2 2
A point on a Cartesian co
A point on a Cartesian co-ordinate system represents a directed distance from-ordinate system represents a directed distance from origin origin x-axis x-axis y-axis y-axis all all Definition of parallelogram. Definition of parallelogram. A point on x-axis at distance
A point on x-axis at distance 3 units is3 units is (0, 3) (0, 3) (3,0) (3,0) (-3,3) (-3,3) (3,-3) (3,-3) For
For three three lines lines to to be be concurrent concurrent = = ??
1 1 0 0 2 2 None None A vector [
A vector [ii,, j j] represents] represents a point. a point. an ordered pair. an ordered pair. another vector. another vector. none of these. none of these.
Two questions related to trigonometric questions. Two questions related to trigonometric questions.
ee 1/ 1/ee ee-2-2
ee33
Probability that an event will not happen Probability that an event will not happen isis
0 0 1 1 - 1 - 1 Calculate the area under the curve
Calculate the area under the curve y y == x x22 fromfrom x x = 0 to= 0 to x x = 4.= 4.
Physics
Physics
Out of about 60 questions that appeared on the test, 41 are given below. Out of about 60 questions that appeared on the test, 41 are given below.
Which cancer is cured by using Sr-90? Which cancer is cured by using Sr-90?
Brain tumor Brain tumor Chest cancer Chest cancer Skin cancer Skin cancer
None of the above None of the above
Which of the following is affected by fast-moving neutrons? Which of the following is affected by fast-moving neutrons?
U-235 U-235 U-238 U-238 both of these both of these none of these none of these
Which one of the following is affected by slow neutrons? Which one of the following is affected by slow neutrons?
U-235 U-235 U-238 U-238 both of these both of these none of these none of these
Which one of the following DOES NOT
Which one of the following DOES NOT USE solar energy?USE solar energy? Fissile element Fissile element Oil Oil Coal Coal Gas Gas
According to Bohr's atomic model, electrons in
According to Bohr's atomic model, electrons in an atom radiate energyan atom radiate energy continuously.
continuously.
when they jump from a higher energy level to a lower energy level. when they jump from a higher energy level to a lower energy level. radial.
radial.
when they collapse into the nucleus. when they collapse into the nucleus.
The visible region of the electromagnetic spectrum
The visible region of the electromagnetic spectrum is calledis called Lyman series Lyman series Balmer series Balmer series Paschen series Paschen series Brackett series Brackett series
The ultraviolet region of the electromagnetic spectrum is called The ultraviolet region of the electromagnetic spectrum is called
Lyman series Lyman series Balmer series Balmer series
Paschen series Paschen series Pfund series Pfund series
Two satellites are approaching each other by a speed of
Two satellites are approaching each other by a speed of cc/2. According to an observer /2. According to an observer on a 3
on a 3rdrdspaceship, the combined speed of the two satellites will bespaceship, the combined speed of the two satellites will be
0 0 cc/4/4 cc cc22
The work done by a force
The work done by a forceFFthrough a displacementthrough a displacement dd is given asis given as Fd Fd cosθ, where θ iscosθ, where θ is the angle between
the angle betweenFF andanddd. In what condition, the value . In what condition, the value of work shall be positive?of work shall be positive? θ < 90° θ < 90° θ > 90° θ > 90° θ = 90° θ = 90° F F == d d
The angle between the three coils in a three-phase generator is The angle between the three coils in a three-phase generator is
0° 0° 60° 60° 120° 120° 180° 180°
The wave fronts of light emitted out of a small light bulb are The wave fronts of light emitted out of a small light bulb are
spherical. spherical. cylindrical. cylindrical. plane. plane.
none of the above. none of the above. The electric field of a point
The electric field of a point charge is ___ in shape.charge is ___ in shape. spherical
spherical symmetrical spherical symmetrical plane plane cylindrical cylindrical
The central region of a transistor is called The central region of a transistor is called
emitter emitter collector collector base base depletion region depletion region
The majority charge carriers in an N-type semi-conductor are The majority charge carriers in an N-type semi-conductor are
positive ions positive ions negative ions negative ions electrons electrons holes holes
Pure silicon exists as a Pure silicon exists as a
insulator insulator semi-conductor semi-conductor conductor conductor superconductor superconductor Time period
Time period T T is the reciprocal of is the reciprocal of frequency frequency f f wavelength wavelength λ λ amplitude amplitude x xoo energy energy E E
Two overlapping waves Two overlapping waves
alter each other's path. alter each other's path. don't alter each other's path. don't alter each other's path. obstruct each other.
ALWAYS result into a wave of zero
ALWAYS result into a wave of zero amplitude.amplitude.
According to special theory of relativity, if mass is const then we
According to special theory of relativity, if mass is const then we can increase thecan increase the velocity by increasing
velocity by increasing kinetic energy (K. E.) kinetic energy (K. E.) potential energy (P. E.) potential energy (P. E.)
internal energy internal energy U U all of the above all of the above
Dimensions of Planck's constant ( Dimensions of Planck's constant (hh):):
[ML [ML22TT-1-1]] [ML [ML22TT-2-2]] [M [M22LTLT-1-1]] None of these None of these
Cross product of two parallel vectors is Cross product of two parallel vectors is
O
O(null vector)(null vector) 0 0 1 1 None of these None of these
If the instantaneous acceleration of a
If the instantaneous acceleration of a body is equal to its average acceleration, body is equal to its average acceleration, thethe body is moving with
body is moving with Uniform velocity Uniform velocity Uniform acceleration Uniform acceleration Both of these Both of these None of these None of these Impulse = Impulse = F F //t t t t // F F F F xx t t F F t t
What will be the orientation of two neutrons
What will be the orientation of two neutrons undergoing elastic collision and one isundergoing elastic collision and one is stopped?
stopped?
All of these All of these If r
If r 11, r , r 22, r , r 33, ... represents the radii of orbits of , ... represents the radii of orbits of an atom, the position energy for an an atom, the position energy for an atomatom of one orbit will be in
of one orbit will be in r r 11 r r 22 Nucleus Nucleus None None
Which is a non-renewable source of energy? Which is a non-renewable source of energy?
Tides Tides Biomass Biomass fuel fuel solar heat solar heat In
Inaa= -ω= -ω22xx,,aa andandxx are directedare directed
in the same direction. in the same direction. in the opposite direction. in the opposite direction.
parallel. parallel.
perpendicular. perpendicular. Two sources are said to be
Two sources are said to be coherent, if the lights emitted by them have coherent, if the lights emitted by them have a patha path difference of difference of n nλ λ ((nn + 1)λ + 1)λ n n + ½λ + ½λ ((nn/2)λ /2)λ
In X-ray diffraction a crystal acts as In X-ray diffraction a crystal acts as
one-dimensional. one-dimensional. two-dimensional. two-dimensional. three-dimensional. three-dimensional. None. None.
The magnification is defined as The magnification is defined as
(Image Height) / (Object Height) (Image Height) / (Object Height) (Object Height) / (Image Height) (Object Height) / (Image Height) (Image Height) x (Object Height) (Image Height) x (Object Height) (Image Height)
(Image Height)-1-1x (Object Height)x (Object Height)-1-1
Angular magnification is Angular magnification is I/O I/O O/I O/I θ θii/ θ/ θoo θ θoo / θ/ θii
Images formed concave mirror are Images formed concave mirror are
Virtual Virtual Erect Erect
Real Real
Both (a) and (c) Both (a) and (c)
Increase in temperature causes a change in Increase in temperature causes a change in
state state
motion of molecules motion of molecules
increase in internal energy increase in internal energy None of these
None of these
The units of electric flux are The units of electric flux are
NC NC-1-1mm22 NC NC-1-1mm-1-1 NC NC-1-1mm None None
Which the best material to be used
Which the best material to be used for a standard resistance wire?for a standard resistance wire? copper copper tungsten tungsten Nichorme Nichorme silver silver
The alignment of domains in a
The alignment of domains in a material is disturbed bymaterial is disturbed by cooling.
cooling. heating. heating.
both (a) and (b). both (a) and (b).
none of these. none of these.
A charged particle moving in a direction perpendicular to a magnetic field will adopt A charged particle moving in a direction perpendicular to a magnetic field will adopt
the direction of motion in the direction of motion in
circle circle parabola parabola hyperbola hyperbola straight straight
The reverse process of annihilation is The reverse process of annihilation is
materialization. materialization. combustion. combustion. ignition. ignition. none. none.
If the mass of a body is doub
If the mass of a body is doubled, its de-Broglie's wavelength isled, its de-Broglie's wavelength is reduced to one-half. reduced to one-half. reduced to one-fourth. reduced to one-fourth. reduced to one-third. reduced to one-third. doubled. doubled.
The weakest forces exist between The weakest forces exist between
proton-proton. proton-proton. proton-neutron. proton-neutron. proton-gravity. proton-gravity. electron-gravity. electron-gravity.
A hot body and a cold body are joined together. What is the effect on the entropy of A hot body and a cold body are joined together. What is the effect on the entropy of
the system? the system? It increases. It increases. It decreases. It decreases.
It remains the same. It remains the same. None of these. None of these. The square of ø in
The square of ø in Schrodinger's equation represents the ___ of an Schrodinger's equation represents the ___ of an electron.electron. location location probability probability position position momentum momentum
