STEP-(I): Salt 'A' +Zn +dil. H_(2)SO_(4) rarr 'X" (g) (Rotten egg's smell) STEP-(II): 'X" gas + (("filter paper moistened"),("with" Pb(OAc)_(2)))rarr 'Y' (Black colour) STEP-(III): 'X' (gas) +H_(2)SO_(3) rarr 'Z' (white turbidity) The correct statement about the above experimental obserbations is/are:

STEP-(I): Salt 'A' +Zn +dil. H_(2)SO_(4) rarr 'X" (g) (Rotten egg's sm

1.	STEP-(I): Salt 'A' +Zn +dil. H_(2)SO_(4) rarr 'X" (g) (Rotten egg's smell) STEP-(II): 'X" gas + (("filter paper moistened"),("with" Pb(OAc)_(2)))rarr 'Y' (Black colour) STEP-(III): 'X' (gas) +H_(2)SO_(3) rarr 'Z' (white turbidity) The correct statement about the above experimental obserbations is/are:
Answer» In step-1,salt 'A' gets reduced to 'X' gas which turms lime water milky. X' gas also TURNS filter paper moistened with CADMIUM acetate to yellow colouration Y' is insoluble in water but with `O_(3)` it gets completely oxidised and CHANGES to white colour precipitate In step-III white turbidity is formed due to redox reaction (comproportionation) of 'X' gasand `H_(2)SO_(3)`. Answer :B::C::D