H2S is passed through an acidified solution of copper sulphate and a black precipitate is formed. This is due to:

(a) oxidation of Cu2+

(b) reduction of Cu2+

(c) double decomposition

(d) reduction and oxidation

Concept Videos :-

#2 | Oxidising & Reducing Agent
#6 | Balancing of Equation by suing n Factor

Concept Questions :-

Oxidation & Reducing Agents (Oxidation No)
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