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Interpret the non-linear shape of H(2)S ...

Interpret the non-linear shape of `H_(2)S` molecule and non-planar shape of `PCl_(3)` using valence shell electron pair repulsion (VSEPR) theory.
(Atomic number `:H=1, P=15, S=16, Cl=17`)

Text Solution

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Hybridisation of `H_(2)S` and `PCI_(3)`
(1) `H_(2)overset(..)S: rArr (1)/(2) (6 +2) = 4 rArr sp^(3)` Due
to two lp of `e^(-')`s it is V-shaped (like `H_(2)O)`
(2) `:PCI_(3) rArr (1)/(2) (5 +3) =4 rArr sp^(3)` Due to one lp of `e^(-')s` it is pyramidal in shape (like `NH_(3))` .
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