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Q.
Which one of the following statements is true for ammonium ion?
EAMCETEAMCET 1997
Solution:
Ammonium ion $ (NH_{4}^{+}) $ has $ s{{p}^{3}} $ hybridization. So, its structure is tetrahedral hence, in $ \text{NH}_{\text{4}}^{\text{+}}\text{.} $ H-atoms are situated at the corners of a tetrahedron.