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Electrophiles are electron seeking species. Which of the following groups contain only electrophiles?

(i)BF_{3}, NH_{3},H_{2}O

(ii)AlCl_{3}, SO_{3},NO_{2}^{+}

(iii)NO_{2}^{+},CH_{3}^{+},CH_{3}-C^{+}=O

(iv)C_{2}H_{5}^{-},C^{\cdot }_{2}H_{5},C_{2}H_{5}^{+}

Answers (1)

The answer is the option (ii) and (iii)

Explanation: Electrophiles are the +vely charged species or the electron-deficient species. They are Lewis acids. AlCl_{3}, SO_{3} and  are Lewis acids, (iii)NO_{2}^{+},CH_{3}^{+},CH_{3}-C^{+}=O are +vely charged species

 

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