When an electron withdrawing or electron releasing group is attached to carbon chain, polarity is induced on the carbon atom and on the substituent attach to it. This permanent polarity is due electron displacement due to difference in electronegativities this is called inductive effect or I effect. The inducitve effect depends in the electronegativity of the substituent. The inductive effect is broadly classified as (i) negative inductive effect or -I effect. (ii) positive inductive effect or +I effect. Stability of given anions in the decreasing order is (i) bar(C)H_(3) "(ii) "bar(C)H_(2)-NO_(2)"(iii) "bar(C)H_(2)Cl"(iv) "CH_(3)-bar(C)H_(2)

When an electron withdrawing or electron releasing group is attached t

1.	When an electron withdrawing or electron releasing group is attached to carbon chain, polarity is induced on the carbon atom and on the substituent attach to it. This permanent polarity is due electron displacement due to difference in electronegativities this is called inductive effect or I effect. The inducitve effect depends in the electronegativity of the substituent. The inductive effect is broadly classified as (i) negative inductive effect or -I effect. (ii) positive inductive effect or +I effect. Stability of given anions in the decreasing order is (i) bar(C)H_(3) "(ii) "bar(C)H_(2)-NO_(2)"(iii) "bar(C)H_(2)Cl"(iv) "CH_(3)-bar(C)H_(2)
Answer» `i GT II gt III gt IV` `ii gt iii gt igt iv` `ii gt igt iii gt iv` `iv gt igt iii gt ii` Solution :