Q. 6

Boric acid is an A. contains replaceable H+ ion

B. gives up a proton

C. accepts OH- from water releasing proton

D. combines with proton from water molecule

Answer :

Because of the small size of boron atom and presence of only six electrons in its valence shell, B(OH)3 accepts a pair of electrons from OH- ion of H2O, releasing a proton.

The reaction mechanism is:

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