Below 900 0C, BeCl2 in vapour phase exists as:
BeCl2
Be2Cl4
BeCl2 and Be2Cl4
BeCl2 in vapour phase exists as a mixture of monomer BeCl2 and dimer Be2Cl4.
BeCl2 exists as a polymer in:
Draw the structure of (i) BeCl2 (vapour) (ii) BeCl2 (solid).