BH3 has a _ geometry with H-B-H bond angles of 120˚.
Correct answer: B. Trigonal planar
- A. Linear
- B. Trigonal planar
- C. Tetrahedron
- D. Bent
Explanation
If a molecule has 2 bond pairs and 0 lone pairs then the molecular shape will be linear. e.g. BeCl2 If a molecule has 3 bond pairs and 0 lone pairs then the molecular shape will be trigonal planar. BH3 molecule has 3 bond pairs and 0 lone pairs with a bond angle of 120o . Therefore its geometry will be trigonal planar. Hence, B is the correct option.If a molecule has 4 bond pairs and 0 lone pairs then the molecular geometry will be tetrahedral. e.g. CH4If a molecule has 2 bond pairs and 2 lone pairs then they have bent geometry. e.g. H2O.
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