Chemistry · 2021
JEE Main · 26 February 2021, Shift 1 · Q50
On treating a compound with warm dil. H_2 SO_4, gas X is evolved which turns K_2 Cr_2 O_7 paper acidified with dil. H_2 SO_4 to a green compound Y. X…
On treating a compound with warm dil. $\displaystyle \mathrm{H}_2 \mathrm{SO}_4$, gas X is evolved which turns $\displaystyle \mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ paper acidified with dil. $\displaystyle \mathrm{H}_2 \mathrm{SO}_4$ to a green compound Y. X and Y respectively are :
Official answer
(4)
$\displaystyle \mathrm{X}=\mathrm{SO}_2, \mathrm{Y}=\mathrm{Cr}_2\left(\mathrm{SO}_4\right)_3$
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JEE Main 2021 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.