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Arrange the following sets of molecules ...

Arrange the following sets of molecules in the decreasing order of bond angle :
(i) `SF_(6), C Cl_(4), H_(2)O, NH_(3)`
(ii) `CH_(4), NH_(3), H_(2)O, BF_(3)`
(iii) `AlCl_(3), H_(2)S, BeH_(2), H_(2)O`

Text Solution

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(i) `C Cl_(4),(109.5^(@)), NH_(3)(107^(@)),H_(2)O(104.5^(@)),SF_(6)(90^(@))`
(ii) `BF_(3),(120^(@)),CH_(4)(109.5^(@)),NH_(3)(107^(@)),H_(2)O(104.5^(@))`
(iii) `BeH_(2),(180^(@)),AlCl_(3)(120^(@)),H_(2)O(104.5^(@)),H_(2)S(90^(@))`
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