If pure ′p′ orbitals are involved in molecule formation, then the shape of H3O+ will be:
A
pyramidal
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B
tetrahedral
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C
angular
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D
planar
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Solution
The correct option is A pyramidal H3O+ will have three bond pairs and one lone pair and shape same as NH3 is therefore pyramidal. The hydroxonium ion is isoelectronic with ammonia and has an identical shape of pyramidal.