Draw the structure of (i) BeCl2 (vapour) (ii) BeCl2 (solid).
(i) In the vapour state, BeCl2 exists as a chlorobridged dimer.
This chlorobridged dimer dissociates into the linear monomer at high temperatures (1200K)
(ii) In the vapour state, BeCl2 has polymeric structure with chlorobridges. The structure is given below: