S Block Elements Question 98
Question: In the following sequence of reaction, identify the compounds (A), (B) (C) and (D): $ \underset{Solution}{\mathop{Na_2CO_3}}\xrightarrow{SO_2}(A)\xrightarrow{Na_2CO_3} $ $ (B)\xrightarrow[Heat]{S}(C)\xrightarrow{AgNO_3}(D) $
Options:
A) $ Na_2SO_3,NaHSO_3,Na_2S,Ag_2S $
B) $ NaHSO_3,Na_2SO_3,Na_2S_2O_3,Ag_2S $
C) $ NaHSO_3,Na_2SO_4,Na_2S,Ag_2O $
D) $ Na_2SO_3,Na_2SO_4,Na_2S_2O_3,Ag $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ Na_2CO_3+2SO_2+H_2O\to \underset{[A]}{\mathop{2NaHSO_3}}+CO_2 $
$ \underset{[A]}{\mathop{2NaHSO_3}}+Na_2CO_3\to \underset{[B]}{\mathop{2Na_2SO_3}}+H_2O+CO_2 $
$ \underset{[B]}{\mathop{2Na_2SO_3}}+S\xrightarrow{Heat}\underset{[C]}{\mathop{2Na_2S_2O_3}} $
$ Na_2S_2O_3+AgNO_3\to \underset{[D]}{\mathop{Ag_2S}}+H_2SO_4 $
BETA
