The correct sequence of increasing covalent c | vedclass

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Question

(C) According to Fajan's rule,the covalent character of an ionic bond increases with the polarising power of the cation.Polarising power is directly p

Vedclass · Accepted Answer

$NaCl < LiCl < BeCl_2$

Vedclass · Answer

(C) According to Fajan's rule,the covalent character of an ionic bond increases with the polarising power of the cation.Polarising power is directly proportional to the charge density of the cation.The charge and size of the cations are $Na^{+}$ ($+1$,large size),$Li^{+}$ ($+1$,smaller than $Na^{+}$),and $Be^{2+}$ ($+2$,smallest size).The order of polarising power is $Be^{2+} > Li^{+} > Na^{+}$.Therefore,the order of increasing covalent character is $NaCl < LiCl < BeCl_2$.

The correct sequence of increasing covalent character is represented by

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