Statement I : Ammonia has a trigonal pyramidal molecular geometry.
Statement II : Ammonia has a tetrahedral electron pair geometry with the three atoms bonded to the central atom.

true, true, correct explanation

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true, true, not correct explanation

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true, false

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false, true

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Solution

The correct option is A true, true, correct explanation
Ammonia also has four electron pairs and the geometry of nitrogen is based upon a tetrahedral arrangement of electron pairs. There are just three bonded groups, therefore there is one lone pair. However since the lone pairs are 'invisible', the shape of ammonia is trigonal pyramidal.

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