Identify the reaction in which `SO_(2)` is not formed?

Options

A. `Na_(2)SO_(3)(aq)+dil. H_(2)SO_(4) rarr`
B. `S+O_(2)" or "air overset("Burnt")rarr`
C. `S+conc.H_(2)SO_(4) rarr`
D. `2NaCl+H_(2)SO_(4) rarr`

Answer

D

Explanation

(a) `Na_(2)SO_(3)(aq)+Dil.H_(2)SO_(4) rarr Na_(2)SO_(4)+H_(2)O+SO_(2) uarr`
In this reaction `SO_(2)` is formed.
(b) `S+O_(2)" (or) air "overset("Burnt")(rarr)SO_(2)`
In this reaction, `SO_(2)` is formed.
(c) `S+2H_(2)SO_(4) rarr 3SO_(2)+2H_(2)O`
In this reaction, `SO_(2)` is formed.
(d) `2NaCl+H_(2)SO_(4) rarr NaHSO_(4)+2HCl`
So, in the reaction (d), `SO_(2)` is not formed.