Science Question Bank
for Exam preparation

Q2. ------------- play a vital role of releasing essential materials from the dead matter and thus maintain a continuous cycle of energy flow and of material.

1. Saprophytes
2. Autotrophs
3. Hetrotrophs
4. None of the above/ More than the above

Q3. Which of the following is a conductor of electricity?

1. Silver
2. Copper
3. Aluminum
4. All of the above

Q4. What makes a reptile a reptile?

1. Cold blooded
2. Warm Blooded
3. Non-Hearing
4. Egg-laying

Q5. The acidic nature and basic nature of some salt solutions can be explained on the basis of:

1. Splitting of a salt compound
2. Hydrolysis of salts
3. Both A and B
4. Only B

Q6. Which organ of the body produces the fluid known as bile?

1. Liver
2. Pancreas
3. Gall bladder
4. Kidney

Q7. What is the chemical name of Baking Soda?

1. Potassium Carbonate
2. Potassium Hydrogen Carbonate
3. Sodium Hydrogen Carbonate
4. Sodium Carbonate

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

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

Q9. How biocides work?

1. Control the multiplication of insects
2. Kill the insects
3. Manage the original form of material
4. Control the bacteria

Q10. Which of the following is not a primary food product?

1. Vegetables
2. Milk
3. Cereals
4. Fruits