The P Block Elements - Result Question 68
####71. The correct order of increasing bond angles in the following species are :
[2010]
(a) $Cl_2 O<ClO_2<ClO_2^{-}$
(b) $ClO_2<Cl_2 O<ClO_2^{-}$
(c) $Cl_2 O<ClO_2^{-}<ClO_2$
(d) $ClO_2^{-}<Cl_2 O<ClO_2$
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Solution:
- (d) (i) As the number of lone pair of electrons increases, bond angle decreases due to repulsion between $l p-l p$.
(ii) As the electronegativity of the central atom increases, bond angle increasess. Hence, the correct order of bond angle:
two lone pairs two lone pairs one lone pair and one electron
