The correct order of bond angles (smalle...

The correct order of bond angles (smallest first) in `H_2 S, NH_3, BF_3 and SiH_4` is

A

`H_(2)S lt NH_(3) lt SiH_(4) lt BF_(3)`

B

`NH_(3) lt H_(2)S lt SiH_(4) lt BF_(3)`

C

`H_(2)S lt SiH_(4) lt NH_(3) lt BF_(3)`

D

`H_(2)S lt NH_(3) lt BF_(3) lt SiH_(4)`

Verified by Experts

The correct Answer is:

A

the order of bond angles
`underset(120^(@))(BF_(3)) gt underset(109^(@).28')(SiH_(4))gt underset(107^(@))(NH_(3)) gt underset(92.5^(@))(H_(2)S)`

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