Chemistry · 2023
JEE Main · 30 January 2023, Shift 1 · Q49
During the qualitative analysis of SO_3^2- using dilute H_2 SO_4, SO_2 gas is evolved which turns K_2 Cr_2 O_7 solution (acidified with dilute H_2…
During the qualitative analysis of $\displaystyle \mathrm{SO}_3^{2-}$ using dilute $\displaystyle \mathrm{H}_2 \mathrm{SO}_4, \mathrm{SO}_2$ gas is evolved which turns $\displaystyle \mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ solution (acidified with dilute $\displaystyle \mathrm{H}_2 \mathrm{SO}_4$ ) :
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