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  4. The correct sequence of decreasing number of π-bonds in the structures of H2SO3, H2SO4 and H2S2O7 is :

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Q. The correct sequence of decreasing number of $\pi$-bonds in the structures of $H_2SO_3, H_2SO_4$ and $H_2S_2O_7$ is :

JEE MainJEE Main 2017The p-Block Elements - Part2

Solution:

Correct answer is (c) $H_2S_2O_7 >\, H_2SO_4> \,H_2SO_3$

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