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Question

Bond angles in H2O and BeCl2 respectively are:

A
109.5o, 180o
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B
104.5o, 180o
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C
180o, 109.5o
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D
109.5o, 109.5o
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Solution

The correct option is B 104.5o, 180o
H2O is sp3 hybridised. So, its expected bond angle should be 109.5o. But due to lone pair - lone pair repulsion, actual bond angle comes out to be 104.5o.
BeCl2 has sp hybridisation and hence has bond angle equals to 180o.

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