VSEPR Theory MCQs
VSEPR theory is used to predict molecular shapes based on the idea that atoms arrange themselves to minimize valence shell electron repulsion and maximize the distance between them. The arrangement of atoms in a molecule determines its molecular geometry. Repulsion is strongest between two lone pairs and weakest between two bond pairs.
1. Which of the following species has 120° bond angles?
(a) NCl3
(b) PH3
(c) ClF3
(d) BCl3
2. Which of the following species has a trigonal planar shape?
(a) NO3–
(b) CO2
(c) N3
(d) NO2–
3. Which of the following has a linear shape?
(a) NO2–
(b) NO2+
(c) O3
(d) SO2
4. If MX6is a regular octahedral molecule, then how many X-M-X bonds are 180°?
(a) 2
(b) 4
(c) 3
(d) 6
5. Find the molecule in which the central atom is having one lone pair of electrons
(a) NH3
(b) PCl5
(c) H2O
(d) CH4
6. In BrF3, lone pairs are present at the equatorial positions. This is to minimise
(a) bp-bp repulsion only
(b) lp-lp repulsion only
(c) lp-bp repulsion only
(d) both (b) and (c)
7. Find the species with a maximum bond angle
(a) NH4+
(b) SCl2
(c) NH3
(d) PCl3
8. XeF6is
(a) Distorted octahedral
(b) Tetrahedral
(c) Octahedral
(d) Planar
9. Number of bond pair and lone pair electrons present on N atom in NO3–are
(a) 3, 1
(b) 4, 0
(c) 2, 2
(d) 1, 3
10. Find the molecule with the least bond angle
(a) BeF2
(b) CH4
(c) NH3
(d) H2O
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