Draw the structure of
$(i)$ $BeCl_2$ (Solid)
$(ii)$ $BeCl_2$ (Vapour)

(N/A) $(i)$ Structure of $BeCl_2$ (solid):
$BeCl_2$ exists as a polymeric chain structure in the solid state,where each $Be$ atom is $sp^3$ hybridized and bonded to four $Cl$ atoms through chlorine bridges.
$(ii)$ Structure of $BeCl_2$ (vapour):
In the vapour state at high temperatures (around $1200 \ K$),$BeCl_2$ exists as a monomer with a linear structure,where $Be$ is $sp$ hybridized.