Is boric acid a protic acid? Explain.
Is boric acid a protic acid? Explain.
Boric acid is not a protic acid. It is a weak monobasic acid, behaving as a Lewis acid.
$B ( OH )_{3}+2 HOH \longrightarrow\left[ B ( OH )_{4}\right]^{-}+ H _{3} O ^{+}$
It behaves as an acid by accepting a pair of electrons from $-OH$ ion.
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The bond dissociation energy of $B- F$ in $BF_3$ is $646 \,kJ\, mol^{-1}$ whereas that of $C - F$ in $CF_4$ is $515\, kJ\, mol^{-1}.$ The correct reason for higher $B- F$ bond dissociation energy as compared to that of $C-F$ is
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- [AIEEE 2008]
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- [NEET 2017]