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Question

The correct order of bond angle is:


A
PF3=PCl3=PBr3=PI3
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B
PF3<PBr3<PCl3<PI3
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C
PI3<PBr3<PCl3<PF3
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D
PF3<PCl3<PBr3<PI3
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Solution

The correct option is D PF3<PCl3<PBr3<PI3
PF3<PCl3<PBr3<PI3

The bond angle order is explained in terms of increasing electronegativity of halogens.
As the electronegativity decreases (down), the bond angle increases.
Also, the larger halogen atoms tend to repel each other better (more).

Chemistry

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