Question Detail

What is laughing gas ?

nitrous oxide
nitric oxide
nitrogen oxide
nitrogen peroxide

Answer: Option A

Similar Questions :

1. The metallurgical process in which a metal is obtained in a fused state is called ?

roasting
calcinations
smelting
froth floatation

Answer: Option C

2. Oxides of metals are alkaline.

TRUE
FALSE

Answer: Option A

3. Which have the maximum density ?

Water
Benzene
Ice
Chloroform

Answer: Option A

4. What is Calcium sulphate ?

epsom salt
blue vitriol
gypsum salt
potash alum

Answer: Option C

5. Mass number of a nucleus is :

the sum of the number of protons and neutrons present in the nucleus
always more than the atomic weight
always less than its atomic number
None of above

Answer: Option A

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