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  4. The correct order of increasing bond angles in the following species is

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Q. The correct order of increasing bond angles in the following species is

CMC MedicalCMC Medical 2013

Solution:

In $ Cl{{O}_{2}}, $ $ Cl $ is $ s{{p}^{2}} $ hybridised and the bond angle is $ 118{}^\circ $ . In $ Cl{{O}_{2}}, $ $ O $ is $ s{{p}^{3}} $ hybridised. However, due to repulsions between two big sized $ Cl $ atoms, the bond angle increases from $ 109{}^\circ -{{28}^{1}} $ to $ 111{}^\circ $ . In $ Cl{{O}_{2}}, $ $ Cl $ atom is $ s{{p}^{3}} $ hybridised but due to $ lp-lp $ repulsions the angle decreases from $ 109{}^\circ -{{28}^{1}} $ to $ 103{}^\circ $ . Thus, the increasing order of bond angles is $ ClO_{2}^{-}< $ $ C{{l}_{2}}O