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  4. What is correct increasing order of bond lengths of bond indicated as I, II, III and IV in following compounds? <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/c-fodn7pi8nxcz5bgq.jpg />

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Q. What is correct increasing order of bond lengths of bond indicated as $I, \, II, \, III$ and $IV$ in following compounds?


Question

NTA AbhyasNTA Abhyas 2022

Solution:

$\%$ S-character $\propto \frac{1}{\text { Bond length }}$ in (ii) & (iii) , (ii) having ( $+$ ) hyperconjugation so double bond character.