1. Real gases exhibit _________ deviation from ideal gases above Boyle temperature?

• A. Positive
• B. Negative
• C. No
• D. Constant

Correct Answer: A. Positive

2. Which of the following is the other R in three R’s to save the environment other than Reduce and recycle?

• A. Rewise
• B. Reuse
• C. Restore
• D. Recall

Correct Answer: B. Reuse

3. Nitrogen fixing bacteria is useful in growing which crop?

• A. Wheat
• B. Paddy
• C. Legume
• D. Maize

Correct Answer: C. Legume

4. Which one of the following proteins transports oxygen in the blood stream?

• A. Keratin
• B. Myoglobin
• C. Collagen
• D. Haemoglobin

Correct Answer: D. Haemoglobin

5. Citizen’s Charter on Environment in the Constitution of India is embodied in

• A. Article 48
• B. Article 48A
• C. Article 49A
• D. Article 51A

Correct Answer: D. Article 51A

6. The National Biodiversity Authority is located at?

• A. Hyderabad
• B. Chennai
• C. Kolkata
• D. New Delhi

Correct Answer: B. Chennai

7. Which of the following examples of colloid does not have a gas dispersing medium?

• A. Smoke
• B. Mist
• C. Cloud
• D. Jelly

Correct Answer: D. Jelly

8. Which of the following is a property of an isobar?

• A. They have same mass number
• B. They have same atomic number
• C. They have same neutron number
• D. They have same chemical property

Correct Answer: A. They have same mass number

9. Which of the following compounds has the highest boiling point?

• A. Methane
• B. Ethane
• C. Propane
• D. Butane

Correct Answer: D. Butane

10. Which of the following statements is incorrect?

• A. Fertilizers and pesticides can destroy the soil structure.
• B. Earthworms are a major contributor to formation of humus.
• C. The biodiversity in an area is determined by the quality of topsoil largely.
• D. Humus causes the soil to become less porous.

Correct Answer: D. Humus causes the soil to become less porous.

11. Carrot grass came to India when India imported –

• A. Rice from Israel
• B. Rice from USA
• C. Wheat from Israel
• D. Wheat from USA

Correct Answer: D. Wheat from USA

12. Acetic acid is known as ________.

• A. Caustic soda
• B. Spirit
• C. Baking soda
• D. Vinegar

Correct Answer: D. Vinegar

13. The carbon-based substance used in modern day pencils is _______.

• A. Chaoite
• B. Coal
• C. Graphite
• D. Silicon

Correct Answer: C. Graphite

14. Which of the following materials is used to make integrated circuits?

• A. Aluminium
• B. Silicon
• C. Glass
• D. Iron

Correct Answer: B. Silicon

15. Which of the following is not true about X-rays?

• A. Have low penetrating power
• B. Travel with the speed of light
• C. It travels in a straight line
• D. It cannot be deflected by electric field

Correct Answer: A. Have low penetrating power