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Hot concentrated sulphuric acid is a moderately strong oxidizing agent. Which of the following reactions does not show oxidizing behaviour?

(a) Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O

(b) S + 2H2SO4 → SO2 + 2H2O

(c) C + 2H2SO4 → CO2 + 2SO2 + 2H2O

(d) CaF2 + 2H2SO4 → CaSO4 + 2HF

1 Answer

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Best answer

The correct option is : (d) CaF2 + 2H2SO4 CaSO4 + 2HF

Explanation:

CaF2 + 2H2SO4 → CaSO4 + 2HF

Here, the oxidation state of every atom remains the same so, it is not a redox reaction.

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