In the following benzyl/allyl system ...

In the following benzyl/allyl system

Then decreasing order of inductive effect is :

`(CH_(3))_(3)C-gt(CH_(3))_(2)CH-gtCH_(3)CH_(2)-`

`Ch_(3)CH_(2)-gt(CH_(3))_(2)CH-gt(CH_(3))_(3)C-`

`(CH_(3))_(2)CH-gtCH_(3)CH_(2)-gt(CH_(3))_(3)C-`

`(CH_(3))_(3)C-gtCH_(3)CH_(2)-gt(CH_(3))_(2)CH-`

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The correct Answer is:

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Inductive effect involves

displacement off `sigma`-electrons resulting in polarisation

displacement of `pi`-electrons resulting in polarisation

delocalisation of `sigma`-electrons

delocalisation of `pi`-electrons.

`P gt Q gt R gt S`

`Q gt S gt R gt P`

`Q gt P gt S gt R`

`Q gt P gt R gt S`

`P gt R gt Q gt S`

`Q gt R gt S gt P`

`R gt S gt Q gt P`

`P gt R gt S gt Q`