EASY
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100

Dry ice is:

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Important Questions on Chemistry

HARD
UPSC CAPF AC Paper - I
IMPORTANT
Recently 'oil zapper' was in the news. What is it?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT

In the context of global oil prices, 'Brent Crude Oil' is frequently in the news. What does this term imply?

1. It is a major classification of crude oil.

2. It is sourced from the North Sea.

3. It does not contain sulphur.

Which of the statement(s) given above is/are correct?

EASY
UPSC CAPF AC Paper - I
IMPORTANT

Consider the following
1. Carbon dioxide
2. Oxides of nitrogen
3. Oxides of sulphur

Which of the above is/are the emission/emissions from coal combustion at thermal power plants?

MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
To meet its rapidly growing energy demand, some opine that India should pursue research and development on thorium as the future fuel of nuclear energy. In this context, what advantage does thorium hold over uranium?
1. Thorium is far more abundant in nature than uranium.
2. On the basis of per unit mass of mined mineral, thorium can generate more energy compared to natural uranium.
3. Thorium produces less harmful waste compared to uranium.
Which of the statement(s) given above is/are correct?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Electrically charged particles from space travelling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of the Earth. What prevents them from reaching the surface of the Earth?
EASY
UPSC CAPF AC Paper - I
IMPORTANT

Consider the following statements:

The purpose of adding sodium sulfate and sodium silicate to the detergent in a washing powder is: 
1. To keep washing powder dry.
2. To maintain the alkalinity of the powder.
Which of these statements is/are correct?

MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Which one of the following is used in making pencils?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
In Egypt, ancient mummies can be found to have their arteries intact due to well-preserved: