What characteristics do you expect from an ...

NCERT Class XI Chemistry Hydrogen Solutions

Question : 9 of 36

Marks: +1, -0

What characteristics do you expect from an electron-deficient hydride with respect to its structure and chemical reactions?

Solution:

It is expected to be a Lewis acid. For example, diborane

B_2H_6

(dimer of

BH_3

) forms complex with LiH which gives H– ion (Lewis base).

\underset{Lithium hydride (Lewis base)}{2LiH}

\underset{Diborane (Lewis acid)}{B_2H_6}

→

\underset{\text{Lithium borohydride (Complex)}}{\mathrm{2Li^{+}[BH_4]^{-}}}

Go to Question:

Prev Question

Next Question