Chemical Bonding And Molecular Structure Ques 40
40. The correct sequence of increasing covalent character is represented by
[2005]
(a) $LiCl<NaCl<BeCl_2$
(b) $BeCl_2<LiCl<NaCl$
(c) $NaCl<LiCl<BeCl_2$
(d) $BeCl_2<NaCl<LiCl$
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Solution:
- (c) As difference of electronegativity increases $%$ ionic character increases and covalent character decreases i.e., as electronegativity difference decreases covalent character increases. Further greater the charge on the cation more will be its covalent character. Be has maximum (+2) charge.
BETA
