Question

Balanced chemical equation of a evolution of a gas

Answer 1

Answer:

H2SO4+Zn ----->ZnSO4+ H2

Answer 2

1. Reaction of dil. Sulphur acid with zinc granules.

H2SO4 + Zn - ZnSO4 + H2

2. White silver chloride turns grey in sunlight. This is due to decomposition of silver chloride into silver and chlorine by light.

2AgCl(s) -----(sunlight) 2Ag(s) + Cl2(g)

hope it helps ☺