Multiple Choice Questions On Science

1     Ampere is the unit of

a)     Current electricity

b)   Nagnetic Field

c)    Electric Charte

d)   Resistance

2     Bile is secreted by

a)    Liver

b)   Pancreas

c)    Kidney

d)   Stomach

3     Which of the following is the hardest metal?

a)    Gold

b)   Iron

c)    Platinum

d)   Tungsten

4     Bakeries use yeast in bread making because it:

a)    Makes the bread hard

b)   Makes the bread soft and spongy

c)    Enhances the food values

d)   Keeps the bread fresh

5     The chemical name of laughing gas is:

a)    Nitric oxide

b)   Nitrogen dioxide

c)    Nitrogen pentoxide

d)   Nitrous oxide

6     Brass is an alloy of:

a)    Lead and tin

b)   Zink and copper

c)    Antimony, tin and lead

d)   Zink, tin and copper

7     The length of its day and tilt of its axis are almost identical to those of the earth. This is true of:

a)    Uranus

b)   Neptune

c)    Saturn

d)   Mars

8     The milky way is classified as:

a)    Spiral Galaxy

b)   Electrical Galaxy

c)    Irregular Galaxy

d)   Round Galaxy

9     The energy of the sun is produced by:

a)    Ionization

b)   Nuclear fusion

c)    Nuclear fission

d)   Oxidation

10  Which one of the following is not correctly matched:

a)    Decibel               Unit of the loudness of sound

b)   Horse power       unit of power

c)    Nautical mile      unit of distance in navigation

d)   Celsius               unit of heat

11  The common name of Sodium Bicarbonate is:

a)    Baking soda

b)   Washing soda

c)    Caustic soda

d)   Soda lime

12  Which variety of glass is heat resistant?

a)    Flight glass

b)   Hard glass

c)    Bottle glass

d)   Pyrex glass

13  Which of the following is a source of ready energy that one athlete can use after strenuous exercises?

a)    Milk

b)   Glucose

c)    Sucrose

d)   Tomato soup

14  The renewable source of energy:

a)    Petroleum

b)   Kerosene

c)    Coal

d)   Tree

15  The filament of on electric bulb is made of:

a)    Copper

b)   Soft iron

c)    Cast iron

d)   Tungsten

16  The natural wax and lac are obtained as:

a)    Petroleum products

b)   Resins of forest plants

c)    By products of sugar industry

d)   Insect secretions

17  Which hormone is known as ‘fight or flight’ hormone:

a)    Insulin

b)   Adrenaline

c)    Estrogen

d)   Oxytocin

18  Pacemaker is associated with:

a)    Kidney

b)   Brain

c)    Heart

d)   Lungs

19  The velocity of sound is more in:

a)    Water

b)   Air

c)    Steel

d)   Wood

20  Which planet orbits closest to the earth?

a)    Mars

b)   Jupiter

c)    Venus

d)   Mercury

21  It causes clotting of blood:

a)    Thrombin

b)   Haemoglobin

c)    Pectin

d)   All of the above

22  Hardness of water is caused soluble salts of:

a)    Sodium and potassium

b)   Potassium and ammonium

c)    Sodium and calcium

d)   Calcium and magnesium

23  The purification of a substance which evaporates without melting can be carried out by:

a)    Crystallisation

b)   Distillation

c)    Steam distillation

d)   Sublimation

24  Which of the following is the largest part of the human brain?

a)    Cerebellum

b)   Midbrain

c)    Cerebrum

d)   Medulla Oblongata

25  The total number of ear bones are:

a)    2

b)   4

c)    6

d)   8

26  An element in the form of gaseous atoms is converted into negative ions is called?

a)    Bond energy

b)   Electron affinity

c)    Electro negativity

d)   Ionization energy

27  Diamond is a form of :

a)    Carbon

b)   Nitrogen

c)    Oxygen

d)   Hydrogen

28  The method used to obtain alcohol from molasses is called:

a)    Distillation

b)   Hydrolysis

c)    Fermentation

d)   Oxidation

29  Which of the following is the least inflammable fabric?

a)    Cotton

b)   Nylon

c)    Rayon

d)   Silk

30  Which of the following is required to build new tissues in the human body?

a)    Carbohydrates

b)   Fat

c)    Protein

d)   Water