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  • The structures of beryllium chloride in solid state and vapour phase respectively are -  Option: 1 dimeric, dimerric  </d

The structures of beryllium chloride in solid state and vapour phase respectively are -
 

Option: 1

dimeric, dimerric
 


Option: 2

chain, chain
 


Option: 3

dimersic, chain
 


Option: 4

chain, dimerric


Answers (1)

best_answer

The structures of beryllium chloride in solid state and vapour phase are dimeric and chain.

In vapour phase, at above 900^{\circ} \mathrm{C}, \mathrm{BeCl}_2is monomeric haring a line ar structure - \mathrm{Cl}-\mathrm{Be}-\mathrm{Cl}.

The banding in \mathrm{BeCl}_2 is covalent and \mathrm{Be} atom accommodates 2+2=4 electrons in the two sp -hybrid orbitals.

Below 900^{\circ} \mathrm{C}, beryllium chloride in vapour phase exists as a mixture of monomer \mathrm{BeCl}_2 and dimes \mathrm{Be}_2 \mathrm{Cl}_4

Hence option 3 is correct.

Posted by

Ajit Kumar Dubey

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