Compound A and B are treated with dil. HCl separately. The gases liberated are Y and Z respectively. Y turns acidified dichromate paper green while Z turns lead acetate paper black. The compound A and B are respectively.

Question

Compound A and B are treated with dil. HCl separately. The gases liberated are Y and Z respectively. Y turns acidified dichromate paper green while Z turns lead acetate paper black. The compound A and B are respectively. (A) Na2CO3 and NaCl (B) Na2SO3 and Na2S (C) Na2S and Na2SO3 (D) Na2SO3 and Na2SO4

Tardigrade Admin · Accepted Answer

Gas (Y) S O2 which can be obtained from Na 2 SO 3(A) and gas (Z) is H2 S which can be obtained from N a2 S(B). This can be easily understood by the following reactions. underset(A)Na 2 SO 3+2 HCl longrightarrow 2 NaCl + underset(Y)SO 2 H 2 O underset(B)Na 2S+2 HCl longrightarrow 2 NaCl + underset(Z)H 2 O K 2 Cr 2 O 7+ H 2 SO 4+3 SO 2 longrightarrow K 2 SO 4+ underset textgreenCr 2( SO 4)3+ H 2 O Pb ( CH 3 COO )2+ H 2 S longrightarrow underset text black PbS downarrow+2 CH 3 COOH

Q. Compound $A$ and $B$ are treated with $d i l . H Cl$ separately. The gases liberated are $Y$ and $Z$ respectively. $Y$ turns acidified dichromate paper green while $Z$ turns lead acetate paper black. The compound $A$ and $B$ are respectively.

$N a_{2} C O_{3}$ and $N a Cl$

$N a_{2} S O_{3}$ and $N a_{2} S$

$N a_{2} S$ and $N a_{2} S O_{3}$

$N a_{2} S O_{3}$ and $N a_{2} S O_{4}$

Q. Compound A and B are treated with dil.HCl separately. The gases liberated are Y and Z respectively. Y turns acidified dichromate paper green while Z turns lead acetate paper black. The compound A and B are respectively.

Na2​CO3​ and NaCl

Na2​SO3​ and Na2​S

Na2​S and Na2​SO3​

Na2​SO3​ and Na2​SO4​

Q. Compound $A$ and $B$ are treated with $d i l . H Cl$ separately. The gases liberated are $Y$ and $Z$ respectively. $Y$ turns acidified dichromate paper green while $Z$ turns lead acetate paper black. The compound $A$ and $B$ are respectively.

$N a_{2} C O_{3}$ and $N a Cl$

$N a_{2} S O_{3}$ and $N a_{2} S$

$N a_{2} S$ and $N a_{2} S O_{3}$

$N a_{2} S O_{3}$ and $N a_{2} S O_{4}$