Science Question Bank
for Exam preparation

Q2. Who among the following Scientist is associated with the invention of the refrigerator?

1. G. Brousa
2. Harison & Kaitlin
3. William Gas Cogin
4. Einstein

Q3. How much force does one coulomb of electric charge exerts on an equal charge placed at a distance of one meter from it?

1. 9 * 109 Newton
2. 10 * 109 Newton
3. 9 * 108 Newton
4. 8 * 109 Newton

Q4. Which of the following have Alpha-keratin as protein?

1. Blood
2. Eggs
3. Skin
4. Wool

Q5. What is Air Quality Index?

1. It tells about the sound pollution
2. It measures air pollution mainly sulphur content in the air.
3. It measures ozone levels in your area.
4. It checks the colour of the air.

Q6. Which of the following statement is true about ionic compounds?

1. Ionic compounds conduct electricity when dissolved in water.
2. Ionic compounds are not soluble in water.
3. Ionic compounds are crystalline solids.
4. Only A and C

Q7. Name the salt whose aqueous solution will have no effect on either red litmus or blue litmus?

1. Potassium Sulphate
2. Sodium Chloride
3. Sodium Carbonate
4. Ammonium Sulphate

Q8. Name a gas which is produced from fermentation of sugar?

1. Ammonia
2. Butane
3. Propane
4. Carbon Dioxide

Q9. The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation? I. There are no clouds or water vapour in the lower stratosphere. II. There is no vertical wind in the lower stratosphere Which of the statements given above is/ are correct in this context?

1. I only
2. II only
3. Both I and II
4. Neither I nor II

Q10. SMOG is derived from:

1. Smoke
2. Fog
3. Both A and B