Q19 / 90 · JEE Main 2023 (06 Apr Shift 2) · Chemistry

Structures of ${BeCl}_{2}$ in solid state, vapour phase and at very high temperature respectively are:

A
Monomeric, Dimeric, Polymeric
B
Dimeric, Polymeric, Monomeric
C
Polymeric, Monomeric, Dimeric
Correct answer
D
Polymeric, Dimeric, Monomeric

Solution

${BeCl}_{2}$ is dimeric in vapour phase. The coordination number of beryllium is 3.
${BeCl}_{2}$ is monomeric at high temperature. The coordination number of beryllium is 2.
${BeCl}_{2}$ is polymeric in solid state. The coordination number of beryllium is 4.

Hence, the correct answer is option: 'D'.

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Structures of BeCl2 in solid state, vapour phase and at very high temperature respectively are:

Solution

Relevant Questions

Structures of ${BeCl}_{2}$ in solid state, vapour phase and at very high temperature respectively are: