- Home
- Standard 12
- Chemistry
General Principles and processes of Isolation of Elements
medium
Roasting of sulphides gives the gas $X$ as a byproduct. This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic, acts as a reducing agent and its acid has never been isolated.
The gas $X$ is
A
$CO_2$
B
$SO_3$
C
$H_2S$
D
$SO_2$
(NEET-2013)
Solution
$\mathrm{SO}_{2}$ gas is obtained when any sulphide ore is roasted.
$2 \mathrm{M}_{2} \mathrm{S}+3 \mathrm{O}_{2} \rightarrow 2 \mathrm{M}_{2} \mathrm{O}+25O_{2}$
This gas $(x) \mathrm{SO}_{2}$ exhibits all the characteristics given in the equation.
Standard 12
Chemistry
