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4HCI + A to MnCl2 + Cl2 uarr + 2H2O, In ...

`4HCI + A to MnCl_2 + Cl_2 uarr + 2H_2O`, In this reaction the change in oxidation state of metal present in A is 

A

`2` to `-2`

B

`+4` to `+6`

C

`-1` to `+3`

D

`+4` to `+2`

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The correct Answer is:
D
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