Exams › JEE Main › Chemistry
Among the following hydrides, which has the largest H-M-H bond angle (M = N, O, S or C)?
- H2O
- CH4
- NH3
- H2S
Correct answer: CH4
Solution
CH4 has no lone pairs and a regular tetrahedral angle of 109.5 deg, the largest among these; NH3 (107 deg), H2O (104.5 deg) and H2S (~92 deg) all have smaller angles due to lone-pair repulsion.
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