Question # 1

Laughing gas has chemical composition of the following two elements which are;

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Nitrogen+Hydrogen

Nitrogen+carbon

Nitrogen+oxygen

Oxygen +Carbon

The branch of physics which deal with the atomic nuclei is called?

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Nuclear physics

Atomic physics

Particle physics

Modern physics

The largest natural number which exactly divides the product of any four consecutive natural numbers, is

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6

12

24

120

Find the greatest number of four digits which must be added to 5231 so that the final number becomes exactly divisible by 12, 15, 27, 32 and 40.

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7929

7829

9729

7729

Diamer-bhasha dam is to be constructed on:

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River sutlej

River jhelum

River chenab

None of these

What is the number just more than 5000 which is exactly divisible by 73 ?

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5001

5009

5037

5027

Antibodies obtain carbon dioxide mainly from:

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Starch

Sucrose

Glucose

Glycogen

Astronomic unit of light year is used to measure

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Distance

Time period

Light intensity

Time

None of these

How many calories should you eat per day to lose weight

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2000

2500

1500

3000

Oranges are bought at 5 for Rs 10 and sold at 6 for Rs 15 the profit or loss as percentage is

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50%

40%

35%

25%

Photograph works by

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Capturing the soul of objects being photographed

Capturing light reflected from the object being photographed

both a and b

None of these

The diameter of a certain rod is required to be 1.5610 ± 0.015 in. The rod's diameter must be between ------------ and ---------------

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1.49 and 1.50 in

1.52 and 1.49 in

1.53 and 1.52 in

1.55 and 1.52 in

Which ricks are formed by the alteration of pre-existing rocks by great heat or pressure?

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Igneous rocks

Sedimentary rocks

Metamorphic rocks

Acid rocks

Three numbers are in the ratio 1 : 2 : 3 and their H.C.F. is 12. The numbers are:

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12, 24, 36

10, 20, 30

5, 10, 15

4, 8, 12

Plants can be made disease resistant by:

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Heat treatment

Hormone treatment

Colchicines treatment

all of these

The gas used for artificial ripening of green fruit is

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Ethylene

Ethane

Carbon dioxide

Acetylene

if 2^x x 8^1/5 = 21/5, then x is equal to:

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1/5

-1/5

2/5

-2/5

Magnifying power of a simple microscope can be increased by:

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Increasing focal length of the lens:

Decreasing focal length of the lens

lens of a large aperture

lens of a short aperture

Which month of calendar year can lack of moon?

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December

February

May

None of these

A light year is a unit of:

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Time

Energy

Length

Mass

A very important practical application of properties of matter is hoeing or "godi" practiced by the farmers, This property of matter is called:

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Elasticity

Stress

Capillarity

Strain

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