Which of the following statements about ...

Which of the following statements about the reaction is`//`are correct?
`HgS+HCl+HNO_(3)rarrH_(2)HgCl_(4)+NO+S+H_(2)O`

A

`Hg` is reduced.

B

Sulphide is oxidised.

C

`N` is reduced

D

`HNO_(3)` is an oxidant.

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The correct Answer is:

B, C, D

`S^(2-)rarrS+2e^(-)("Oxidised")`
`3e^(-)+NO_(3)^(ө)rarrNO` (`N` is reduced and `HNO_(3)` is oxidising agent).

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