Q.

Which of the following statements about the reaction is/are correct?HgS+HCl+HNO3⟶H2HgCl4+NO+S+H2O

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a

Hg is reduced

b

Sulphide is oxidised

c

N is reduced.

d

HNO3 is an oxidant

answer is B.

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Detailed Solution

(2) S2−⟶S+2e−(Oxidised) 3e−+NO3⊖⟶NON is reduced and HNO3 is oxidising agent)
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Which of the following statements about the reaction is/are correct?HgS+HCl+HNO3⟶H2HgCl4+NO+S+H2O