Question

नेम द केमिकल बाय विच वे आईडेंटिफाई डिस्टेंस​

Answer 1

Explanation:

When silver chloride is left exposed in sunlight, it decomposed to black metallic color silver and chlorine gas is evolved.

2AgCl⟶2Ag(s)+Cl(g)

This is called as Photo decomposition Reaction.