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A halide of Be(X) sublimes on heating an...

A halide of Be(X) sublimes on heating and is a bad conductor of electricity in molten state. From its aqueous solution it is diffucult to obtain anhydrous salt. This halide of berylium (X) is obtained by heating berylium oxide with carbon tetrachloride at `800^(@)`C. This halide of berylium forms a complex of the `M_(2)[BeX_(4)]`
What is the compound (X)

A

`BeBr_(2)`

B

`BeF_(2)`

C

`BeCI_(2)`

D

any of these

Text Solution

Verified by Experts

The correct Answer is:
C
Among the halides of Be . `BeCI_(2)` is more volatile and sublimises on heating. It is a covalent compound so it cannot conduct electricity in molten state as it does not contain any ions in molten state
`2BeO + C CI_(4) overset"(800^(@)C)rarr 2BeCI_(2) + CO_(2)`
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