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Question 9.9 What characteristics do you expect from an electron-deficient hydride with respect to its structure and chemical reactions?

Class XI Hydrogen Page 289

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Answered by abhi178
37
These type of hydrides do not have sufficient number of electrons to form normal covalent bonds.example : BF3 has only 6 electrons in its valance shell, these hydride are trigonal planar in shape.

due to electron deficient it acts as Lewis acid. { A lone pair acceptor}

To make up the deficiency of electrons , these hydride exist in polymeric form eg., B2H6, B4H10 etc. These are very reactive.these react with metals and non-metals and their compounds readily.

e.g., B2H6 + 3O2(g) ---> B2O3 + 3H2O .
Answered by HemaMuniyappan
4

Explanation:

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