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Bond angle in is PH4^+ higher than that ...

Bond angle in is `PH_4^+` higher than that in `PH_3`

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The hybridisation of P in both `PH_3` and `PH_4^+` is `sp^3.PH_3` contains three bond pairs and one lone pair of electrons. Due to lone pair-bond pair repulsion, the bond angle is less than the tetrahedral angle in `PH_3`. But in `PH_4^+` there are four bond pairs and no lone pair. So its bond ,angle is almost the same as that of tetrahedral angle.
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