Question

16. Mention with reason the colour changes observed when :
silver chloride is exposed to sunlight.
6) copper powder is strongly heated in the presence of oxygen.
Gii) a piece of zine is dropped in copper sulphate solution.​

Answer 1

AgCl -----> Ag + Cl²

Cu + O² ------> CuO BLACK COLOUR

Zn + CuSo⁴ ------> ZnSo⁴ + Cu COLOUR LESS

Answer 2

copper powder is heated it starts to pop like popcorn.

Explanation:

the zinc is dropped in solution the bubbles start coming releasing hydrogen.if we keep match stick near the mouth. pop sound comes