Among (LiCl, BeCl\_2, BCl\_3 )and (CCl\_4) , the covalent bo... | Chemistry | SolveeIt

Question

Among $LiCl, BeCl_2, BCl_3$ and $CCl_4$ , the covalent bond character follows the order

$LiCl < BeCl_2 >BCl_3 >CCl_4$

$LiCl < BeCl_2 < BCl_3 >CCl_4$

$LiCl < BeCl_2 < BCl_3 < CCl_4$

$LiCl > BeCl_2 > BCl_3 >CCl_4$

Answer

$LiCl < BeCl_2 < BCl_3 < CCl_4$

Explanation

Solution

The electronegativity increases from left to right in any period, so the electronegativity follows the order
$\hspace26mm Li < Be < B < C$ and hence, the covalent character of chlorides of
these elements increase from Li to C because size of cation left to right decreases and according to Fajans- rule covalent character increases.

Chemistry Question on Chemical bonding and molecular structure

Solution