NSO Class 8th - Mock Test 2 Books

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Question 1
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Reptile is to lizard as flower is to

A
petal

B
stem

C
daisy

D
bud

Question 2
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Look at this series:

36, 34, 30, 28, 24, ...

Which number should come next ?

A
20

B
22

C
23

D
26

Question 3
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Which of the following options is the correct coded form of HJK, if BDS is coded as FHW?

A
JKL

B
LNO

C
HJK

D
KLM

Question 4
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Select the related word from the given alternatives.

Ludhiana : City : : Haryana : ?

A
State

B
Capital

C
Union Territory

D
City

Question 5
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Find the missing term in the following series:

SCD, TEF, UGH, ____, WKL

A
CMN

B
UJI

C
VIJ

D
IJT

Question 6
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Which of the following in an example of weeds?

A
Paddy

B
Xanthium

C
Sorghum

D
Maize

Question 7
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Which of the following options is not an example of traditional method of irrigation?

A
Pulley system

B
Chain pump

C
Drip system

D
Lever system

Question 8
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Which of the following microorganisms is/are responsible for setting of curd?

A
Yeast

B
Virus

C
Lactobacillus

D
Both 1 and 2

Question 9
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Which of the following is an example of microorganism that is used in the preparation of ice creams and jellies?

A
Gelidium

B
Virus

C
Anabena

D
Rhodomenia

Question 10
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Nylon is an important synthetic fibre that has a variety of applications.
Which of the following options about nylon is correct?

A
Nylon is made of repeating units of a chemical called ester.

B
Nylon is cheaper than natural wool and can be dyed in various colours, hence used as a replacement for wool.

C
A nylon is stronger than a steel wire of the same thickness.

D
Nylon is a good absorbent and has properties similar to cotton.

Question 11
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Which of the following is not a characteristic property of plastics and hence, cannot be used to describe them?

A
Poor conductors

B
Biodegradable

C
Non-reactive

D
Strong and durable

Question 12
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What does zinc give along with zinc chloride when it reacts with hydrochloric acid?

A
Chlorine gas

B
Chloric acid

C
Zinc oxide

D
Hydrogen gas

Question 13
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Which of the following does not react with dilute sulphuric acid on heating, but reacts with concentrated sulphuric acid?

A
Copper

B
Aluminium

C
Magnesium

D
Iron

Question 14
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Analyze the two statements given below and select the correct option.

Statement I: In the fractional distillation of petroleum, kerosene is collected in a lower part of the fractional column as compared to petrol.
Statement II: Petrol and kerosene have different boiling points.

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

B
Both the statements I and II are correct but the 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 15
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Which process is known as carbonisation?

A
Conversion of dead vegetation into coal

B
Melting of iron

C
Burning of tar

D
Fossilisation of dead plants and animals

Question 16
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What is the reason for phases of the moon to occur?

A
We can see only that part of the moon which refracts light towards us.

B
Some part of the moon hides behind the dust in the atmosphere.

C
Our distance from the moon keeps changing.

D
We can see only that part of the moon which reflects light towards us.

Question 17
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Which of the following pollutants is released in large quantity by the thermal power plants?

A
Sulphur dioxide

B
Hydrochloric acid

C
Nitric acid

D
Magnesium oxide

Question 18
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Which of the following options is FALSE?

A
Sodium and potassium are stored under kerosene.

B
Lemon pickle is stored in aluminium utensils.

C
Immersion rods for heating the liquids are made up of metallic substances.

D
Copper cannot displace zinc from its salt solution.

Question 19
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Which of the following options is/are the reason(s) behind migratory birds to fly far away to other places?

A
Natural disaster

B
Climatic changes

C
Atmospheric disturbances

D
All of these

Question 20
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Which of the following options shows a record that is maintained by Red Data Book?

A
Extinct species

B
All species

C
Endangered plants and animals

D
Endemic species

Question 21
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Which of the following options is not an example of endangered species?

A
Blue Whale

B
Giant Panda

C
Elephant

D
Wild water buffalo

Question 22
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Which unit of distance is the easiest way to express distance between planets and the sun?

A
Kilometre

B
Parsec

C
Astronomical Unit

D
Nautical Mile

Question 23
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Which planet can be seen in western sky after sunset?

A
Mercury

B
Venus

C
Jupiter

D
Uranus

Question 24
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Which organ is present at the upper end of the windpipe of a human being?

A
Larynx

B
Vocals

C
Tonsils

D
Tongue

Question 25
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Which of the following options is/are TRUE?

A
The carpet produces greater frictional force than the tiled surface.

B
We are more likely to slip while walking on a wet floor.

C
A bigger and heavier box is more difficult to be moved than a smaller and lighter box.

D
All of the above

Question 26
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Which of the following substances is most helpful in reducing friction?

A
Charcoal

B
Lubricant

C
Sand

D
Water

Question 27
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Abida and Ramesh were conducting an experiment in which water was to be heated in a beaker. Abida kept the beaker near the wick on the yellow part of the candle flame. Ramesh kept the beaker on the outermost part of the flame. Which of the following options is TRUE according to the situation?

A
Abida has kept the beaker in the non-luminous zone of the flame.

B
Ramesh's beaker will be heated faster

C
Abida's beaker will be heated faster

D
Ramesh has kept the beaker in the luminous zone of the flame.

Question 28
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L.P.G is the most common domestic fuel which is stored in cylinders or transported through pipelines.

Which of the following statements about L.P.G is/are incorrect ?

I. It is a foul smelling gas.
II. It is a clean fuel with a high calorific value.
III. It undergoes spontaneous combustion in the gas burners.
IV. It is a mixture of hydrocarbons.

A
I and II

B
II and III

C
II and IV

D
I and III

Question 29
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Which of the following is the main reason that presence of air is an essential condition for combustion?

A
It contains oxygen.

B
It enables the flames to burn for a long time.

C
It helps the flames in travelling in order to spread the fire.

D
It has sufficient heat to ignite the fuel.

Question 30
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Which of the following options is FALSE?

A
Weight is the force of gravity with which an object is pulled by the Earth.

B
Frictional forces are the forces that oppose or prevent motion.

C
A force results from the interaction between two objects.

D
Forces are measured in units called Joules (J).

Question 31
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Which of the following does not allow electricity to pass through it?

A
Tap water

B
Vinegar

C
Vegetable oil

D
Sea water

Question 32
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Which of the following is an application of electricity in our daily lives?

A
Conduction

B
Electroplating

C
Convection

D
All of these

Question 33
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Which of the following options is the point on the Earth's surface vertically above the focus of an earthquake?

A
Hypocentre

B
Pericentre

C
Epicentre

D
Apocentre

Question 34
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What is the transfer of charge from an object to the Earth known as?

A
Earthing

B
Static charges

C
Conduction

D
Lightening

Question 35
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When we apply force on an inflated balloon using both hands, its shape changes. Which of the following causes that change?

A
Force of Gravitation

B
Force of Motion

C
Force of Pressure

D
Force of Friction

Question 36
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Which type of force is the gravitational force?

A
Tension Force

B
Spring Force

C
Contact Force

D
Non-contact Force

Question 37
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Which of the following part of cell comprises DNA molecules?

A
Plasma membrane

B
Lysosome

C
Nucleus

D
Golgi complex

Question 38
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Which of the following endocrine glands is attached to the base of the brain by a thin stalk?

A
Pituitary gland

B
Thyroid gland

C
Adrenal gland

D
Pineal gland

Question 39
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Which of the following is formed by fertilisation between two gametes?

A
Zygote

B
Placenta

C
Morula

D
Blastula

Question 40

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Match the following:

A	B
1. It is used for making engines.	a. Copper
2. It is used for making electric wires.	b. Carbon
3. It is used as a fuel.	c. Mercury
4. It is used in thermometers.	d. Iron
5. It is used in aircraft.	e. Titanium

1 – a, 2 – b, 3 – c, 4 – d, 5 – e

5 – a, 4 – b, 3 – c, 2 – d, 1 – e

1 – d, 2 – a, 3 – b, 4 – c, 5 – e

2 – b, 3 – c, 4 – a, 5 – e, 1 – d

Question 41
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Match the causative organism in column A to the disease in column B.

A B

1. Bacteria a. Chicken pox

2. Virus b. Polio

3. Protozoa c. Cholera

- d. Typhoid

- e. Malaria

A
2 - a, b ; 1 - c, d ; 3 - e

B
1 - a, b ; 2 - c, d ; 3 - e

C
1 - a ; 2 - b ; 3 - c, d, e

D
1 - c, d, e ; 2 - b ; 3 - a