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Question

The correct increasing order of X−O−X bond angle is: (X=H, F or Cl)

A
H2O>Cl2O>F2O
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B
Cl2O>H2O>F2O
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C
F2O>Cl2O>H2O
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D
F2O>H2O>Cl2O
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Solution

The correct option is B Cl2O>H2O>F2O
ClOCl bond angle is larger since Cl is bigger than the other atoms. This causes a greater interelectronic repulsion and OF2 will have the lowest bond angle as F is more electronegative. So, the bond pair of electrons mostly reside around the F atom.

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