MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100
Helium is preferred to hydrogen in air balloons because it _____
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Important Questions on Chemistry
EASY
UPSC CAPF AC Paper - I
IMPORTANT
Consider the following statements regarding diamond:
1. It is an allotrope of silicon.
2. It is a bad conductor of heat and electricity.
3. It is the hardest substance.
4. It burns to produce carbon dioxide.
Which of the statements given above are correct?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
EASY
UPSC CAPF AC Paper - I
IMPORTANT
HARD
UPSC CAPF AC Paper - I
IMPORTANT
1. Non-metals are neither malleable nor ductile.
2. Non-metals are bad conductors of heat and electricity except for graphite, which conducts electricity.
3. Non-metals form negatively charged ions by gaining electrons when reacting with metals.
Which of the statements given above are correct?
HARD
UPSC CAPF AC Paper - I
IMPORTANT
HARD
UPSC CAPF AC Paper - I
IMPORTANT
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
EASY
UPSC CAPF AC Paper - I
IMPORTANT
1. Nitric acid is used in the production of fertilizers.
2. Sulphuric acid is used in the production of explosives.
Which of the statements given above is/are correct?
