question_answer 44)

  Some of the group 2 metal halides are covalent and soluble in organic solvents. Among the following metal halides the one which is soluble in ethanol is : (a)\[BeC{{l}_{2}}\]                           (b) \[MgC{{l}_{2}}\]                        (c) \[CaC{{l}_{2}}\]                           (d) \[SrC{{l}_{2}}\]

Answer:

  (a) \[BeC{{l}_{2}}\] is covalent in nature as \[B{{e}^{2+}}\] ion has high polarisation power due to small size and high charge. It is soluble in alcohol.