HgNO32⟶ΔW+X+O2 X+H2O⟶HNO2+HNO3 W+HNO3⟶Y+NO+H2O Y+Na2S2O3( excess )⟶Z+NaNO3

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W - Hg, X - N2O, Y - HgNO32 Z - Na2HgS2O32

W - HgO, X - NO Y - HgNO32 Z - NaHgS2O32

W - Hg X -NO2 , Y - HgNO32 Z - Na2HgS2O32

W- Hg, X - N2O3, Y - HgNO32 Z - Na3HgS2O32

answer is C.

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Detailed Solution

HgNO32⟶ΔHg(l)+NO2↑+O2↑ (W) (X) 2NO2+H2O⟶HNO2+HNO3 Hg+4HNO3⟶ΔHgNO32+2NO↑+2H2O (w) (dil.) (Y) HgNO32+Na2S2O3⟶Na2HgS2O32+2NaNO3 (Soluble) (Z)

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