1
UPSC Civil Service Prelims Paper I 2024 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66

With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) that are used in making many consumer products, consider the following statements:

1. PFAS are found to be widespread in drinking water, food and food packaging materials.

2. PFAS are not easily degraded in the environment.

3. Persistent exposure to PFAS can lead to bioaccumulation in animal bodies.

Which of the statements given above are correct?

A

1 and 2 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

2
UPSC Civil Service Prelims Paper I 2024 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66

Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen?

A

Hydrogen peroxide

B

Hydronium

C

Oxygen

D

Water vapour

3
UPSC Civil Service Prelims Paper I 2023 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

Consider the following:

1. Aerosols

2. Foam agents

3. Fire retardants

4. Lubricants

In the making of how many of the above are hydrofluorocarbons used?

A
Only one
B
Only two
C
Only three
D
All four
4
UPSC Civil Service Prelims Paper I 2022 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

With reference to India, consider the following statements :

1. Monazite is a source of rare earths.

2. Monazite contains thorium.

3. Monazite occurs naturally in the entire Indian coastal sands in India.

4. In India, Government bodies only can process or export monazite.

Which of the statements given above are correct?

A
1, 2 and 3 only
B
1, 2 and 4 only
C
3 and 4 only
D
1, 2, 3 and 4
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