Question

Rahup collected the coin of copper and silver he oberserved that copper coins had green coating and silver coins had black (a) name the process responsible for coating
(b) write chemical name if coating
(c) identify oxidising and reducing agent
Mno2(s) +4Hcl(a2)---> mncl2(a2) +cl2(g) +H2o(a2) ​

Answer 1

Answer :

The answer A is the Corrosion

The answer B is the copper name is copper corrosion, and silver name is the Silver corrosion.