H_3BO_3 is [IIT JEE 2003]

JEE Main Chemistry question

is [IIT JEE 2003]

(A)Monobasic and weak Lewis acidCorrect
(B)Monobasic and weak Bronsted acid
(C)Monobasic and strong Lewis acid
(D)Tribasic and weak Bronsted acid

Answer: (A)

Solution

Boric acid does not ionise to donate a proton directly; instead it acts as a monobasic Lewis acid, accepting a hydroxide ion from water: . Because boron has no

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Question ID VK-138239