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CBSE Class 11-science Answered

Give method to prepare beryllium chloride. Deduce the structure of the compound.
Asked by Topperlearning User | 28 Jun, 2016, 01:34: PM
answered-by-expert Expert Answer

It is prepared by heating beryllium oxide with chlorine vapours in the presence of carbon.

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Beryllium chloride has a polymeric chain structure in the soilid state due to its electron deficient nature. It has only four electrons in the valence shell and can accept two electron pairs (from neighbouring Cl atom forming coordinate bonds) to complete its octet.

Polymeric structure of BeCl2

Each Be atom is tetrahedrally surrounded by four Cl Atoms. Two of the chlorine atoms are bonded by covalent bonds while the other two by coordination bonds.

Answered by | 28 Jun, 2016, 03:34: PM

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