JEE PYQ: S Block Elements Question 26
Question 26 - 2019 (09 Apr Shift 2)
The structures of beryllium chloride in the solid state and vapour phase, respectively, are:
(a) chain and chain (b) dimeric and dimeric (c) chain and dimeric (d) dimeric and chain
Show Answer
Answer: (c)
Solution
$\text{BeCl}_2$ in vapour phase exists as dimer (below 1200 K temperature) whereas, in solid state $\text{BeCl}_2$ has chain structure.