Question

Name the gas evolved in each of the following: [5]
i. Action of heat on NH4Cl.
ii. CuSO4 is heated strongly.
iii. On decomposition of ZnCO3.
iv. A reddish-brown gas liberated on heating lead nitrate crystals.
v. Action of dil. HCl on Magnesium.

Answer 1

1-Ammonia
2-SO2
3-NO2
4-H2