Question Detail

Which gas is used in fire extinguishers ?

Carbon dioxide
Nitrogen oxide
Carbon monoxide
Sulpher dioxide

Answer: Option A

Similar Questions :

1. pH of water is

5
6
7
8

Answer: Option C

2. Atomic number is equal to

Number of electrons
Number of nutron
Number of protons
Total number of protons and neutrons

Answer: Option C

3. Chemical used in photography is

sodium sulphate
sodium sulphite
sodium thiosulphate
sodium oxalate

Answer: Option C

4. Which metal is heaviest ?

osmium
mercury
iron
nickle

Answer: Option A

5. The single acid which dissolves gold is ?

Aqua regia
Hydrochloric acid
Nitric acid
Selenic acid

Answer: Option A

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