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) Salt 'A' and gas 'X' may be:

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) Salt 'A' and gas 'X' may be:
Answer» `Na_(2)SO_(3)` and `SO_(2)` `NaHSO_(3)` and `H_(2)S` `Na_(2)SO_(3)` and `H_(2)S` `NaHSO_(3)` and `SO_(2)` Answer :B::C