Chemistry · 2017
JEE Main · 9 April 2017, Shift 1 · Q49
The correct sequence of decreasing number of π -bonds in the structures of H_2 SO_3, H_2 SO_4 and H_2 S_2 O_7 is:
The correct sequence of decreasing number of $\displaystyle \pi$-bonds in the structures of $\displaystyle \mathrm{H}_2 \mathrm{SO}_3$, $\displaystyle \mathrm{H}_2 \mathrm{SO}_4$ and $\displaystyle \mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_7$ is :
Official answer
(3)
$\displaystyle \mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_7>\mathrm{H}_2 \mathrm{SO}_4>\mathrm{H}_2 \mathrm{SO}_3$
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JEE Main 2017 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.