Question

Which of the following is true about $H_{3}B{O}_3$?

• A. Monobasic and weak Lewis acid
• B. Monobasic and weak Bronsted acid
• C. Monobasic and strong Lewis acid
• D. Tribasic and weak Bronsted acid

Answer 1

The correct option is A

Monobasic and weak Lewis acid

Boron has vacant orbital hence it can accept electron pairs but due to back bonding tendency to accept electron decreases, So it behaves as weak lewis acid.