LogicaL reasoning
Statement 2 A particle can move only under the action of a force
A. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C. Statement 1 is true but statement 2 is false.
D. Both statements 1 and 2 are false.
14. A stone is dropped from the top of a tower. When it has fallen by 5 m from the top, another stone is dropped from a point 25 m below the top. If both stones reach the ground at the same moment, then height of the tower from ground is (Take g = 10 m s–2)
A. 45 m B. 50 m
C. 60 m D. 65 m
15. Refer to the graph given here:
Time
D. Depend upon the density of the media.
17. A planet of mass m is revolving around the sun in a circle of radius r. What is the work done by the gravitational force F in moving the planet over half the circumference of the circle?
A. Zero B. F × 2pr
C. F × pr D. F × 2r
18. Two satellites of masses m1 and m2 (m1 > m2) are revolving around the earth in circular orbits of radii r1 and r2 (r1 > r2) respectively. Which of the following is true regarding their respective speeds v1 and v2? A. v1 = v2
B. v1 > v2
C. v1 < v2
D. Cannot be predicted
19. Which of the following statements is/are incorrect?
(i) Work and energy have different units.
(ii) Two bodies of unequal masses have equal acceleration at any instant of time when they are
A. (ii) only B. (i) and (iii) only C. (i), (ii) and (iv) only D. (i), (ii), (iii) and (iv) 20. A bicycle is being pedalled on a horizontal road. The
forces of friction between the road and the front and rear wheels are F1 and F2 respectively. Then
A. Both F1 and F2 act in the forward direction.
B. Both F1 and F2 act in the backward direction.
C. F1 acts in the forward direction, F2 acts in the backward direction.
D. F1 acts in the backward direction, F2 acts in the forward direction.
21. A girl whose eyes are 150 cm above the ground looks at her reflection in a vertical mirror 250 cm away.
The top and bottom of the mirror are 200 cm and
| 19th NSO | Class-9 | Set-A | Level 1 4
If the value of external pressure in cases (i), (ii), (iii) and (iv) is represented by PI, PII, PIII and PIV respectively, then
A. PI > PII = PIII > PIV B. PIV > PII = PIII > PI
C. PIII > PII > PIV > PI D. PI = PII = PIII = PIV
23. The given diagram represents an activity to separate a mixture of two substances X and Y :
Substances X and Y are respectively A. Sugar and common salt B. Acetone and water
C. Ammonium chloride and naphthalene D. Ethyl alcohol and sodium chloride.
24. Read the following statements carefully.
P. I am extensively used in the healthcare industry but my one disadvantage is that I am non-biodegradable.
Q. I am very familiar form of polyester and used for making bottles, utensils, films, wires, etc.
R. I am synthetic fibre, having wool-like feel and cheaper than wool.
S. I am thermosetting plastic and poor conductor of heat and electricity.
P, Q, R and S are respectively
A. PET, Rayon, Petrochemical, Plastic B. Terylene, Acrylic, Rayon, Melamine C. PVC, PET, Nylon, Teflon
D. Plastic, PET, Acrylic, Bakelite.
25. Which of the following statements are correct?
(Given: At. wt. of Ca = 40 u, Mg = 24 u, N = 14 u, H = 1 u, Na = 23 u, Cl = 35.5 u)
I. 240 g of calcium and 240 g of magnesium elements have a molar ratio of 3 : 5.
II. 100 g of N2 contains more atoms than 100 g of NH3. III. Total number of ions in 5.85 g of sodium chloride
is 1.2 × 1022.
12.046 × 1023 atoms of hydrogen.
V. 5.6 g of nitrogen gas occupies 3.2 L of volume at 673 K and passed into the (i) . As the vapours rise towards the top, the different hydrocarbons (ii) at different heights and are withdrawn separately. Substance with (iii) boiling point is collected at the (iv) of the column.
(i) (ii) (iii) (iv)
A. Distillation Condense Lowest Top
flask
B. Chromato- Melt Highest Top
graphic column
C. Fractionating Condense Highest Bottom column
D. Fractionating Condense Lowest Bottom column
Substance Melting point (°C) Boiling point (°C) A.
28. The schematic atomic structures of three elements X, Y and Z are given as :
Which of the following statements is/are incorrect?
I. Z can form ZCl3 and ZCl5. II. Y exists in monoatomic form.
III. X and Z combine to form X3Z type compound.
IV. X and Y combine to form XY2 type compound.
V. X will gain two electrons to form a stable compound.
A. I and II only B. I, II and IV only C. II, IV and V only D. III, IV and V only
19th NSO | Class-9 | Set-A | Level 1 | 5 29. Observe the given diagram carefully.
.Which of the following statements are correct? and electrons in atoms or ions. Which atom/ion in the table is an isotope of the atom with the composition only one nucleolus in the nucleus of each cell instead of the usual two.
When such animals are mated, approximately one quarter of the offspring have two nucleoli per nucleus, one half have one nucleolus per nucleus and one quarter have no nucleolus at all. Offspring without nucleoli die about four days after hatching.
These offspring die because they do not possess A. Mitochondria and are unable to obtain energy B. Centrioles and are unable to undergo cell division C. Golgi apparatus and are unable to remove dead
cells
D. Ribosomes and are unable to manufacture proteins.
34. Refer to the diagrammatic representations of parts of two different tissues, X and Y.
Now, read the following statements and select the correct ones regarding these tissues.
(i) X is an animal tissue whereas Y is a plant tissue.
(ii) X is the major water conducting tissue in vascular plants and gives mechanical strength to plant body.
(iii) X is composed of all dead cells whereas Y is composed of all living cells.
(iv) X conducts water in vascular plants in downward direction.
(v) In animals, Y helps in conduction of nerve impulses from various organs to brain and spinal cord and vice versa.
the amount of pollutants in four rivers P, Q, R and S. The river that can continue to support the most number of aquatic plants and animals is ________.
A. P B. Q
C. R D. S
| 19th NSO | Class-9 | Set-A | Level 1 6
and T.
P Q R S T
A. Pinus Funaria Ulothrix Brassica Riccia
B. Spirogyra Funaria Dryop- Cycas Hibiscus
teris
C. Tagetes Marchantia Ginkgo Salvia Marsilea
D. Volvox Lycopodium Cycas Adiantum Pteridium
Direction : Read the given passage and answer the questions 37 and 38.
Sukriti and Priya are good friends and study in Istandard of a reputed school. On a hot summer day, while they both were playing in the school playground, Priya felt uncomfortable and sat down. After some time she developed acute headache and high fever. Her legs stopped moving and she also felt some stiffness in her neck. Soon she became unconscious. A. Malaria Protozoan Bite of infected
Anopheles
B. Tuberculosis Bacteria Contaminated water
C. Polio Virus Faecal oral route
D. Diphtheria Fungus Sharing of clothes 38. What could be the probable reason for Sukriti not
being affected by pathogen of this disease?
A. Sukriti's immune system has already encountered the weakened pathogens and developed memory cells, which produce antibodies whenever pathogen enters her body.
B. Sukriti had actually contracted the disease few months back and recovered, hence her immune system has developed memory cells, which prevent any subsequent pathogen attack.
C. Sukriti is taking antibiotics regularly, which kill the pathogens entering her body and prevent the actual disease.
D. Sukriti has received antibodies against the pathogen from her mother via placenta so she is immune to the pathogen of this disease by birth.
and select the option that correctly fills any four of these. red blood cells of humans.
A. P-Salmonella typhi, R-Chronic, T-Sandfly, U-Brain cells
B. Q-Acute, S-Kala azar, T-Tsetse fly, U-Pancreas
C. P-Helicobacter pylori, R-Congenital, S-Cleft palate, U – Liver
D. Q-Chronic, R-Acute, T-Aedes mosquito, U-Spleen
40. The given diagrams show two different cropping patterns, X and Y. Identify these patterns and select the incorrect option regarding them.
A. In cropping pattern X, the crops should not have the same root pattern.
B. Crops selected for cropping pattern Y should have different type of nutrient requirement.
C. Crops selected for cropping pattern X must have different maturation time.
D. In cropping pattern Y, only two crops can be grown simultaneously at a time. and select the correct option regarding it.
A. Tissue X forms a shock absorbing cushion around kidneys and eyeballs.
B. Tissue X fills the spaces inside the organs and fastens the peritoneum to the body wall.
C. Tissue X connects skeletal muscles with bones.
D. Tissue X is commonly called packaging tissue of the body.
19th NSO | Class-9 | Set-A | Level 1 | 7 42. Refer to the given Venn diagram and select the correct
option regarding P, Q and R.
Unicellular rganismso
A. P could be Chlamydomonas or Aspergillus.
B. Q could be Volvox or Penicillium.
C. R could be Lactobacillus or Rhizobium.
D. All of these
43. Refer to the diagram showing organ X of the human body and read the following paragraph.
Organ X secretes two hormones P and Q. P prepares our body to function at maximum efficiency during emergency situations whereas Q maintains the correct salt balance in the blood.
Identify P and Q and select the correct option.
A. P – Aldosterone, Q – Thyroxine B. P – Adrenaline, Q – Aldosterone C. P – Insulin, Q – Adrenaline D. P – Thyroxine, Q – Adrenaline
44. Which of the following activities will lead to both air and water pollution?
A. Use of manures and fertilisers in a crop field B. Use of cooling devices like air conditioners and
refrigerators
C. Burning of fossil fuels and use of fuel operated transport vehicles.
D. All of these
45. Shown below is the diagrammatic representation of a biosphere reserve.
Select the correct statement regarding this.
A. Tourists can visit P and Q zones but are not allowed in the R zone.
B. Human settlement and cultivation of crops is allowed in P and Q zones only.
C. Human activities like research and environmental education are allowed in all P, Q and R zones.
D. Cutting of trees is allowed in all the zones but hunting of wild animals is allowed only in Q zone.
achievers section
46. Study the given graph carefully and select the correct statement(s).
I. When water is cooled to 4°C, the volume decreases.
II. Ice and water co-exist at 0°C.
III. Water has minimum density at point Q.
IV. The volume of ice is more than that of water.
A. I only B. II and III only C. I, II and IV only D. All of these
47. Refer to the given graph and fill in the blanks by choosing an appropriate option.
The displacement of the particle from its initial position at the end of 15 s and 30 s is ___(i)___ and ___(ii)___
respectively. The average velocity of the particle between 15 s and 25 s and 0 s to 30 s is ___(iii)___
| 19th NSO | Class-9 | Set-A | Level 1 8
following graphs correctly shows the variation of (i) its potential energy with respect to the ground against time and (ii) its kinetic energy against time?
A.
Time (i) (ii)
E
B.
Time (i) (ii)
E
C.
Time (ii) (i) E
D.
Time (i) (ii)
E
49. Refer to the given dichotomous key and select the incorrect option regarding organisms P, Q, R and S.
I. (a) Animals with cellular level – P of body organisation.
(b) Animals with tissue/organ/ – Go to II organ system level of
body organisation.
II. (a) Animals possessing – Go to III (a) bilateral symmetry.
(b) Animals possessing – Go to III (b) radial symmetry.
III. (a) True coelom is present. – Go to IV (a) (b) True coelom is absent. – Go to IV (b) IV. (a) Notochord is present. – Q
(b) Notochord is absent. – Go to V V. (a) It forms symbiotic – R association with hermit crab.
(b) It is commonly known as jelly fish. – S
pores called ostia and a single large opening called osculum on top.
B. Organism Q possesses gill slits at some stage of its life.
C. The body of organism R is differentiated into head, visceral mass and ventral foot.
D. Organism S possesses nematocysts.
50. Refer to the given diagram of an animal cell and select the option that correctly describes the functional relationship between organelles P and Q.
A. Polypeptides synthesised at Q are transported to P where they are stored for regular use in cytoplasm.
B. Polypeptides synthesised at Q are transported to P where they are modified into functional proteins for secretion.
C. Polypeptides synthesised at P are packaged into vesicles that move to Q for further modification.
D. Polypeptides synthesised at P are packaged without modification and move to Q where they are stored for regular use in cytoplasm.
sPace For roUgh WorK
19 th
Year 2016
Class 9
Set B
| 19th NSO | Class-9 | Set-B | Level 1 2
1. Trishika and Sidak started walking from two different points 'A' and 'B' respectively. Trishika walks 5 km North and turns to the East and walks 6 km. She again turns to North and walks 4 km and finally she turns to East and walks 3 km to reach point 'C'. Similarly, Sidak walks 5 km North and turns to West and walks 6 km and finally turns to North, walks 4 km and meets Trishika at point 'C'. In which direction is point 'B' from point 'A'?
3. There is a definite relationship between figures 1 and 2. Establish a similar relationship between figures 3 and 4 by selecting a suitable figure from the given options that would replace the (?) in fig. 4.
A. B.
C. D.
4. If in a certain code language, LATE is coded as 8&4$
and HIRE is coded as 7«3$, then how will HAIL be coded in the same language?
A. 7&8« B. &7«8
6. Which of the following Venn diagrams best represents the relationship amongst, "Males, Females and Brothers"?
A. B.
C. D.
7. A square transparent sheet with a pattern on it is given.
If the sheet is folded along the dotted line, then which pattern would appear from the given options?
A. B.
C. D.
8. Find the missing number, if same rule is followed in all the three figures.
A. 4 B. 12
C. 7 D. 14
9. A word and number arrangement machine when given an input line of words and numbers, rearranges them following a particular rule in each step. The following is an illustration of input and steps of rearrangement.
Input : wind packet 19 7 back 12 task 34 Step I : 34 wind packet 19 7 back 12 task