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

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Cu+2H2SO4→CuSO4+SO2+2H2O

S+2H2SO4→3SO2+2H2O

C+2H2SO4→CO2+2SO2+2H2O

CaF2+H2SO4→CaSO4+2HF

answer is D.

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Detailed Solution

CaF2+H2SO4⟶CaSO4+2HFHere, the oxidation state of every atom remains the same so, it is not a redox reaction.

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