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In which of the following species the interatomic bond angle is 109° 28'?

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asked Mar 29, 2018 in Chemistry by paayal (26,720 points) ● 4 ● 6 ● 11

In which of the following species the interatomic bond angle is 109° 28'?
(a) NH3,(BF4 )–1 

(b) (NH4 )+,BF3

(c) NH3,BF3 

(d) (NH2 )–1,BF3.

1 Answer

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answered Mar 29, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Apr 1, 2018 by Vikash Kumar
 
Best answer

(a) : Both undergoes sp3 hybridization. The expected bond angle should be 109º28' but actual bond angle is less than 109º28'because of the repulsion between lone pair and bonded pairs due to which contraction occurs

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