Chemistry, asked by khl19, 8 months ago

Which of the following reactions is an example of auto reduction?
(a) Fe3O4 + 4CO → 3Fe + 4CO2
(b) Cu2O + C → 2Cu + CO
(c) Cu2+ (aq) + Fe (s) → Cu (s) + Fe2+ (aq)
(d) Cu20 + Cu2S → 3Cu + SO2

Answers

Answered by shaun5

2

Answer:

d

Explanation:

because it is auto reduction as Cu2S acts as reducing agent.

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