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