Science Question Bank
for Exam preparation

Science- 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

Science- 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

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

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

Science- 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.

Science- 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

Science- 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

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

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

Science- 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

Science- Q10. SMOG is derived from:

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