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Which of the following reaction depicts ...

Which of the following reaction depicts the oxidsing behaviour of `H_(2)SO_(4)`?

A

`2HI + H_2 SO_4 rarr I_2 + SO_2 + 2H_2 O`

B

`Ca(OH)_2 + H_2 SO_4 rarr CaSO_4 + 2H_2 O`

C

`NaCl + H_2 SO_4 rarr NaHSO_2 + HCl`

D

`2PCl_5 + H_2 SO_4 rarr 2POCl_3 + 2HCl + SO_2 Cl_2`

Text Solution

Verified by Experts

The correct Answer is:
A
`overset((-1))(2HI) + overset((+6))(H_(2) SO_(4)) rarr overset ((0))I_(2) overset((+4)) (SO_(2)) + 2 H_(2) O`
Oxidation state of `S` is reduced from `+6` to `+ 4` and `I^(Ө)` is oxidised to `I_(2)`.
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