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(BeH2)n is a ______________

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in Chemistry – Class 11 by (148k points)
(BeH2)n is a ______________

(a) covalent hydride

(b) polymeric hydride

(c) ionic hydride

(d) metallic hydride

I have been asked this question by my college professor while I was bunking the class.

This key question is from Hydrogen topic in division Hydrogen of Chemistry – Class 11

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Correct option is (b) polymeric hydride

For explanation I would say: Polymeric hydrides are formed by elements having electronegativity in the range of 1.4 to 2.0. Examples of polymeric hydrides are (BeH2)n, (AlH3)n etc. They are joined to each other through hydrogen bonding in order to form a larger unit.

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