Q. Which of the following behaves as Lewis acid and not as Bronsted acid?

A) $HCl$
B) $H_{2}{SO}_{4}$
C) ${HSO}_{3}^{-}$
D) ${SO}_{3}$
Explanation

(d)
Lewis acid have a tendency to accept electrons while Bronsted acids have a tendency to donate proton.
(A)$HCl\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \rightarrow H^{+} + \ Cl^{-}$
Bronsted acid
(B)$H_{2}{SO}_{4}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \rightarrow H^{+} + \ {HSO}_{4}^{-}$
Bronsted acid
(C)${HSO}_{3}^{-}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \rightarrow H^{+} + \ {SO}_{3}^{2 -}$
Bronsted acid
(D)
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Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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