Increasing order of acid strength among p-methoxyphenol, p-methylphenol and p-nitrophenol is

Question

Increasing order of acid strength among p-methoxyphenol, p-methylphenol and p-nitrophenol is (A) p-nitrophenol, p-methoxyphenol, p-methylphenol (B) p-methylphenol, p-methoxyphenol, p-nitrophenol (C) p-nitrophenol, p-methylphenol, p-methoxyphenol (D) p-methoxyphenol, p-methylphenol, p-nitrophenol

Tardigrade Admin · Accepted Answer

-OCH3,-CH3 are electron donating groups so decrease the acidic character of phenols. -NO2,-CN are electron withdrawing groups, tend to increase the acidic character. Hence acidic strength order is p-methoxyphenol < p-methylphenol < p-nitrophenol.

Q. Increasing order of acid strength among p-methoxyphenol, p-methylphenol and p-nitrophenol is

p-nitrophenol, p-methoxyphenol, p-methylphenol

p-methylphenol, p-methoxyphenol, p-nitrophenol

p-nitrophenol, p-methylphenol, p-methoxyphenol

p-methoxyphenol, p-methylphenol, p-nitrophenol

$- OC H_{3}, - C H_{3}$ are electron donating groups so decrease the acidic character of phenols. $- N O_{2}, - CN$ are electron withdrawing groups, tend to increase the acidic character. Hence acidic strength order is

p-methoxyphenol < p-methylphenol < p-nitrophenol.

Q. Increasing order of acid strength among p-methoxyphenol, p-methylphenol and p-nitrophenol is

p-nitrophenol, p-methoxyphenol, p-methylphenol

p-methylphenol, p-methoxyphenol, p-nitrophenol

p-nitrophenol, p-methylphenol, p-methoxyphenol

p-methoxyphenol, p-methylphenol, p-nitrophenol

−OCH3​,−CH3​ are electron donating groups so decrease the acidic character of phenols. −NO2​,−CN are electron withdrawing groups, tend to increase the acidic character. Hence acidic strength order is p-methoxyphenol < p-methylphenol < p-nitrophenol.

$- OC H_{3}, - C H_{3}$ are electron donating groups so decrease the acidic character of phenols. $- N O_{2}, - CN$ are electron withdrawing groups, tend to increase the acidic character. Hence acidic strength order is

p-methoxyphenol < p-methylphenol < p-nitrophenol.