In the following benzyl/allyl system
\( \mathrm{P} \) \( \mathrm{R}...
In the following benzyl/allyl system
\( \mathrm{P} \) \( \mathrm{R}-\mathrm{CH}=\mathrm{CH}_{2} \) or
W (R is alkyl group) decreasing order of inductive effect is-
(1) \( \left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH}-\mathrm{CH}_{3} \mathrm{CH}_{2}- \)
(2) \( \mathrm{CH}_{3}-\mathrm{CH}_{2}-\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH}-\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}- \)
(3) \( \left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH}-\mathrm{CH}_{3} \mathrm{CH}_{2}-\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CH}- \)
(4) None of these
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