JEE MAIN - Chemistry (2022 - 29th June Evening Shift - No. 13)
A white precipitate was formed when BaCl2 was added to water extract of an inorganic salt. Further, a gas 'X' with characteristic odour was released when the formed white precipitate was dissolved in dilute HCl. The anion present in the inorganic salt is
I$$-$$
SO32$$-$$
S2$$-$$
NO2$$-$$
Explanation
Anion is $\mathrm{SO}_{3}^{-2}$
$$ \mathrm{BaSO}_{3} \stackrel{\text { dil } \mathrm{HCl}}{\longrightarrow} \underset{x(\text { gas })}{\mathrm{SO}_{2} \uparrow} $$
Gas is released with smell of burning sulphur.
$$ \mathrm{BaSO}_{3} \stackrel{\text { dil } \mathrm{HCl}}{\longrightarrow} \underset{x(\text { gas })}{\mathrm{SO}_{2} \uparrow} $$
Gas is released with smell of burning sulphur.
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