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Question
Arrangement of (CH3)3−C−,(CH3)2−CH2−,CH3−CH2− when attached to benzyl or an unsaturated group in increasing order of inductive effect is
Arrangement of (CH3)3−C−,(CH3)2−CH2−,CH3−CH2− when attached to benzyl or an unsaturated group in increasing order of inductive effect is
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Solution
The correct option is B CH3−CH2−<(CH3)2−CH−<(CH3)3−C−
Permanent polarisation of bond due to shifting of shared pair of sigma electrons towards the more electronegative atom/substituent is known as inductive effect. Permanent shift in electron density from the substituent towards the carbon chain is called +I effect.
−CH3 group has +I effect, as number of −CH3 group increases, the inductive effect increases. Hence, the correct answer is option (b).
Permanent polarisation of bond due to shifting of shared pair of sigma electrons towards the more electronegative atom/substituent is known as inductive effect. Permanent shift in electron density from the substituent towards the carbon chain is called +I effect.
−CH3 group has +I effect, as number of −CH3 group increases, the inductive effect increases. Hence, the correct answer is option (b).
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