A) \[LiCl\] and \[RbCl\]
B) \[MgC{{l}_{2}}\]and \[BeC{{l}_{2}}\]
C) \[RbCl\] and \[BeC{{l}_{2}}\]
D) \[RbCl\] and \[MgC{{l}_{2}}\]
Correct Answer: C
Solution :
According to Fajan's rule RbCl has greatest ionic character due to large ionic size of \[R{{b}^{+}}\] ion. \[BeC{{l}_{2}}\] has least ionic (Maximum covalent) due to small size of \[B{{e}^{+2}}\] ion which has highly polarising.
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