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Arrange the following groups in the order of decreasing (-I) effect.

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Arrange the following groups in the order of decreasing (-I) effect.

(a) CN > F > Br > Cl > COOH > I > H

(b) COOH > CN > F > Br > Cl > I > H

(c) H > COOH > CN > I > Cl > F > Cl

(d) CN > COOH > F > Cl > Br > I > H

I have been asked this question by my school principal while I was bunking the class.

I need to ask this question from Inductive Effect in portion Reactivity of Molecules Reaction Mechanism of Engineering Chemistry I

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Correct choice is (d) CN > COOH > F > Cl > Br > I > H

The best explanation: The correct order is- CN > COOH > F > Cl > Br > I > H.

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