NSO - Mock Test

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Question 1
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What is the mirror image of the word MOUSE, if the mirror is placed in the manner as given below?

A

B

C

D

Question 2
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A number series is given with one term missing. Choose the correct option that will continue the same pattern

(3, 5) (4, 7) (5, 9) (6, 11) (7, 13) (__, __)

A
(7, 14)

B
(7, 15)

C
(8, 14)

D
(8, 15)

Question 3
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Complete the following series:

36 33 37 34 38 ?

A
35

B
37

C
39

D
41

Question 4
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A family consists of six members P, Q, R, X, Y and Z. Q is the son of R, but R is not mother of Q. P and R are a married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P. Who is the brother-in-law of R?

A
Z

B
P

C
Y

D
None of these

Question 5
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If in a certain language, VOLTAS is written as UNKSZR, then how will TEACH be written in that code?

A
SDZBG

B
SZDBG

C
SDZGB

D
GDZBS

Question 6
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In the following series, how many 5's are there which are immediately preceded by a symbol and immediately followed by 8?

8963*#23%52^&58@568

A
One

B
Two

C
Three

D
None

Question 7
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Find out the missing number in the following pattern:

A
146

B
145

C
142

D
140

Question 8
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If '+' means '-' and '÷' means 'x', then what is the value of (32 + 24) ÷ 5?

A
20

B
30

C
40

D
50

Question 9
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Kavya started walking towards her office from her house. She walked 3 km towards west, then took a right turn and walked 2 km, and then again took a left turn and walked just 0.5 km, and then finally she reached her office. In what direction is Kavya's office from her house?

A
North

B
West

C
North-west

D
South-west

Question 10
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Directions: In the following question, there is a certain relationship between two terms given on one side of (::) and one term is given on the other side of (::), while another term is to be found from the given alternatives having the same relationship with this term as the terms of the given pair bear. Choose the best alternative.

9 : 729 :: 11 : ?

A
1001

B
1111

C
1221

D
1331

Question 11
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Pewter is a tin-based alloy used as a material from which domestic utensils were fashioned.
It is about 91% tin, 7.5% antimony, and 1.5% copper.

How will you classify Pewter as a substance?

A
True solution

B
Colloid

C
Compound

D
Suspension

Question 12
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Which of the following is NOT a triatomic molecule?

A
Ozone

B
Carbon dioxide

C
Carbon monoxide

D
Nitrous oxide

Question 13
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Which of the following definitions best describes canal rays?

A
The positively charged radiation produced in the discharge tube that move towards the cathode

B
The collection of negatively charged particles emitted from cathode in the discharge tube experiment.

C
Produced by atoms of all elements except Hydrogen.

D
The collection of negatively charged particles emitted from cathode as well as from the atoms of the gas in the discharge tube experiment.

Question 14
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Which of the following methods is used to separate two solids that are soluble in the same solvent?

A
Solvent extraction

B
Fractional crystallisation

C
Distillation

D
Chromatography

Question 15
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In a species, the number of electrons is 2 less than the number of neutrons and the number of protons is one less than the number of neutrons. If the mass number is 23, the actual number of electrons, protons and neutrons respectively are

A
12, 13, 14

B
10, 11, 12

C
11, 12, 13

D
9, 10, 11

Question 16
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Which of the following mixtures can be separated by the method of centrifugation?

A
Camphor from salt

B
Iron from sand

C
Salt from sea water

D
Butter from curd

Question 17
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Analyze the two statements given below and select the correct option.

Statement I: At higher altitudes, water boils at a temperature below 100°C.
Statement II: Atmospheric pressure decreases with the increase in altitude.

A
Both the statements I and II are correct and statement II is the correct reason for I.

B
Both the statements I and II are correct but statement II is not the correct reason for I.

C
Statement I is correct but statement II is incorrect.

D
Both the statements I and II are incorrect.

Question 18

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Match the colloidal mixtures listed in column I with the type of colloids listed in column II.

Column I	Column II
A. Milk	(i) Foam
B. Whipped cream	(ii) Gel
C. Ruby glass	(iii) Emulsion
D. Cheese	(iv) Solid sol

A - (iii); B - (iv); C - (i); D - (ii)

A - (iii); B - (i); C - (iv); D - (ii)

A - (ii); B - (i); C - (iv); D - (iii)

A - (iii); B - (i); C - (ii); D - (iv)

Question 19
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Which of the following statements is/are correct?

I. The boiling point of oxygen gas is higher than room temperature.
II. At a temperature between the melting and boiling points, a substance will exist in the liquid state.

A
Both I and II are correct.

B
Both I and II are incorrect.

C
Only II is correct.

D
Only I is correct.

Question 20
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Which of the following is the chemical name for baking soda?

A. Sodium carbonate
B. Potassium carbonate
C. Potassium hydroxide
D. Sodium bicarbonate

A
D

B
C

C
B

D
A

Question 21
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If two objects are of equal mass m and traveling with equal speed (v) toward each other then which of the following statements are correct:-

1. Total momentum is 2mv
2. Total kinetic energy is mv²^{3. Total kinetic energy 0.
4. Total momentum is 0.}

A
Statement 1 and 2 are correct

B
Statement 2 and 4 are correct

C
Statement 3 and 4 are correct

D
Statement 1 and 3 are correct

Question 22
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Look at the picture and tell the direction in which the road will apply the friction on the car?

A
Right to left ←

B
Left to right →

C
Both ways

D
In none of the given directions

Question 23
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The gravitational force between two different objects is F. If masses of both the objects are halved and the distance between them is also halved, then what would be the gravitational force?

A
F

B
F/2

C
F/4

D
F/16

Question 24
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A student is whirling a stone tied with a thread in a horizontal circular path. If the string breaks, what would happen to the stone?

A
It will continue to move in the circular path.

B
It will move along a straight line tangential to the circular path.

C
It will move along a straight line.

D
It will move along the straight line perpendicular to the circular path.

Question 25
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The weight of an object at the centre of the Earth with radius R is

A
zero

B
infinite

C
R times the value at the surface of the Earth

D
10 times the value at the surface of the Earth

Question 26
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A certain object weighed 10 N in air; but when it was in water, it weighed 8 N only. Calculate the weight of the liquid displaced by the object.

A
10 N

B
2 N

C
12 N

D
8 N

Question 27
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When an object is revolving around sun, then direction of centripetal force is

A
radially toward sun

B
radially away from sun

C
upward perpendicular to earth

D
downward perpendicular to earth

Question 28
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Here are a few statements about a plant tissue. On the basis of the statements, choose the option which correctly follows all the statements.

Statement I: It is composed of elongated walls and irregularly thickened cells.
Statement II: It provides extra structural support, particularly in regions of new growth.

A
Parenchyma

B
Sclerenchyma

C
Collenchyma

D
Aerenchyma

Question 29
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Look at the given options. Study them carefully and choose the option which is caused by the bacteria named Helicobacter.

A: Peptic ulcer
B: Gastric ulcer
C: Duodenal ulcer
D: Oesophageal ulcer

A
D

B
C

C
B

D
A

Question 30
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Heterocysts are specialised nitrogen-fixing cells that are found in

A
cyanobacteria

B
fungi

C
gymnosperms

D
lichens

Question 31
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Which of the following statements about the Cl atom and Cl^- ion are incorrect?

(i) Cl atom being neutral is more stable.
(ii) Cl^-has a higher effective nuclear charge.
(iii) Cl^- has a smaller radius.
(iv) Cl atom is monovalent.

A
(i), (ii) and (iii)

B
(i) and (ii)

C
(ii) and (iv)

D
(ii), (iii) and (iv)

Question 32
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_____________ is given the credit for the discovery of cell nucleus.

A
David Baltimore

B
Erwin Chargaff

C
Robert Brown

D
Raymond Dart

Question 33
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Following are the characteristics shown by a certain group of vertebrates.

1. Exoskeleton made up of scales
2. Endoskeleton is made of bone/cartilage
3. Gills serve as the respiratory organ

Choose the correct answer from the options given below.

A
Reptilia

B
Amphibia

C
Pisces

D
Aves

Question 34
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Which of the following eukaryotic organisms have cell wall made up of cellulose?

A
Fungi

B
Animalia

C
Plantae

D
Monera

Question 35
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Which among the following is a type of plant tissue in which cells keep on dividing?

A
Meristematic tissue

B
Permanent tissue

C
Sclerenchyma

D
Phloem

Question 36
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______________ is/are a part of the nucleus and assemble(s) ribosomal subunits in eukaryotic cells.

A
Nuclear membrane

B
Nucleolus

C
Nucleoplasm

D
Nuclear pores

Question 37
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Out of the given options, which one deals with the practice of controlling the establishment, growth and composition, health and quality of forest?

A
Aquaculture

B
Apiculture

C
Silviculture

D
Floriculture

Question 38
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Pine, Cedar, Spruce and Cypress are considered to be the timber producing plants. Look at the options and choose the family they belong to?

A
Gymnosperms

B
Angiosperms

C
Bryophytes

D
Pteridophytes

Question 39
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Cause of cholera is a:

A
Bacteria

B
Virus

C
Fungi

D
Protozoa

Question 40
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Which of the following plays the role of denitrification in nitrogen cycle?

A
Rhizobium

B
Pseudomonas

C
Nitrosomonas

D
Azotobacter

Question 41
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Digestion of starch in the mouth begins with the help of the following enzyme:

A
Ptyalin

B
Trypsin

C
Pepsin

D
Lipase

Question 42
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Which of the following is most suitable for the study of mutations?

A
Diploids

B
Haploids

C
Tetraploids

D
Polyploid

Question 43
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________ is the name of a young one of a cockroach.

A
Nymph

B
Beetle

C
Moth

D
Larvae

Question 44
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The tissue which is primarily instrumental for the conduction of water and solutes, and also for mechanical support is

A
Collenchyma

B
Phloem

C
Parenchyma

D
Xylem

Question 45
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Which of the following is a micronutrient?

A
Zinc

B
Nitrogen

C
Phosphorous

D
Potassium

Question 46
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Which part of the human ear collects the sound wave and then directs them through the ear canal?

A
A

B
C

C
B

D
D

Question 47
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Refer to the bar graph given below:

Water samples from five different points (P, Q, R, S and T) of a river were collected. The BOD of the collected water samples has been shown in the bar graph given above.

On which of the place(s) (P to T), the highest amount of organic matter is released into the river?
Note: Biochemical oxygen demand (BOD) is the amount of dissolved oxygen needed (i.e. demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.

A
Both P and T

B
Only P

C
Both R and T

D
Only S

Question 48
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Look at the following diagram of SONAR which means Sound Navigation and Ranging. It is an Acoustic device which used to measure the depth, direction and speed under water. The distance of the underwater object is calculated from the time taken by echo to return with speed. What is the name of the method for measuring distance?

A
Echo Ranging

B
Ultrasonic pulse

C
Reflected ultrasonic pulse

D
None of these

Question 49
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Refer to the organisms A and B shown above. Choose the correct statement from the following.

A
Both A and B possess flagella.

B
Both A and B lack cell wall.

C
B is a ciliated protozooan which causes malaria.

D
Both A and B have autotrophic mode of nutrition.

Question 50
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A solution of calcium carbonate is 10% by mass. What is the number of calcium ions in 1000 g of the solution?

A
1.2044 × 10²³

B
12.044 × 10²³

C
6.022 × 10²³

D
3.011 × 10²³