Heating mixture of Cu2O and Cu2S will give

For Competitive Exams

Heating mixture of Cu₂O and Cu₂S will give

Cu + SO₂

Cu + SO₃

CuO + CuS

Cu₂SO₃

Next Question

KMnO₄ can be prepared from K₂MnO₄ as per the reaction:

3MnO2–
4 + H₂O ⇌ 2MnO–
4 + MnO₂ + 4OH^–

The reaction can go to completion by removing OH^– ions by adding

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