Question

Among the following groups, the group having maximum -I effect is
-CH3
-OH
-COOH
-Cl​

Answer 1

$\huge\mathfrak{Answer:-}$

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♠️ Basically, -I effect is shown by electron withdrawing groups.

♠️ When a group displaying the -I effect is bonded to a molecule, the electron density of the resulting molecule reduces making it more likely to accept electron.

♠️ Therefore acidity of the molecule increases.

♠️ COOH will show more -I effect. So, option c is the correct answer.

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$\huge\mathfrak{Thank you:)}$