1.

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

Answer»

`Cu+2H_(2)SO_(4) to CuSO_(4)+SO_(2)+2H_(2)O`
`3S+2H_(2)SO_(4) to SO_(2)+2H_(2)O`
`C+2H_(2)SO_(4) to CO_(2)+2SO_(2)+2H_(2)O`
`CaF_(2)+H_(2)SO_(4) to CaSO_(4)+2HF`

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