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Hot concentrated sulphuric acid is a mod...

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

A

`Cu+2H_(2)SO_(4)toCuSO_(4)+SO_(2)+2H_(2)O`

B

`3S+2H_(2)SO_(4) to 3SO_(2)+2H_(2)O`

C

`C+2H_(2)SO_(4)toCO_(2)+2SO_(2)+2H_(2)O`

D

`CaF_(2)+H_(2)SO_(4)toCaSO_(4)+2HF`

Text Solution

Verified by Experts

The correct Answer is:
D
Concentrated `H_(2)SO_(4)` act strong oxidizing agent so oxidizes non metal
`underset(0)(C)+underset(+6)(2H_(2)SO_(4))tounderset(+4)(CO_(2))+underset(+4)(2SO_(2))+2H_(2)O`
`underset(0)(3S)+underset(+6)(2H_(2)SO_(4))tounderset(+4)(2SO_(2))+2H_(2)O`
`underset(0)(C)u+underset(+6)(H_(2)SO_(4)) overset(+2)(Cu)SO_(4)+underset(+4)(SO_(4))+H_(2)O`
`Caoverset(-1)(F_(2))+overset(+6)(H_(2)SO_(4))to overset(+6)(CaSO_(4))+overset(-1)(2HF)`
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