CSIR NET Chemical Science MCQS Chemical Bonding (VSEPR Theory)

MCQs

Multiple Choice Questions

Q1. The shape and geometry of [XeF3]+ respectively is

(a) TBP and T-shape

(b) T-shape and TBP

(c) TBP and See-Saw

(d) See-Saw and TBP

Answer: (b)

Q2. The molecule with biggest bond angle is

(a) NH3

(b) NF3

(c) H3O+

(d) NH4+

Answer: (d)

Q3. What will be the basicity of acid formed by hydrolysis of AsX3 and P2X4?

(a) 3 and 2

(b) 2 and 3

(c) 3 and 4

(d) 2 and 4

Answer: (a)

Q4. Number of vertices, edges and faces in pentagonal bipyramidal geometry are respectively

(a) 7, 15, 10

(b) 7, 10, 15

(c) 7, 10, 12

(d) 5, 10, 15

Answer: (a)

Q5. How many molecules/ions in the following have two lone pairs in the central atom according to VSEPR theory?

SF4, BF4-, XeF4, ICl4-

(a) 2

(b) 3

(c) 4

(d) 0

Answer: (a)

Q6. In water, ammonia and methane molecules

(a) Bond angles are same

(b) Bond distances are same

(c) Hybridizations are same

(d) Shapes are same

Answer: (c)

Q7. According to the VSEPR theory, molecule/ion having ideal tetrahedral shape is

(a) SF4

(b) SO42-

(c) S2Cl2

(d) SO2Cl2

Answer: (b)

Q8. Among the following pairs, those in which both the species have similar structures are

(A) N3-, XeF2

(B) [ICl4]-, [PtCl4]2-

(C) [ClF2]+, [ICl2]-

(D) XeO3, SO3

(a) A and B only

(b) A and C only

(c) A, B and C

(d) B, C and D

Answer: (a)

Q9. Match list I compounds with list II structures and select the correct answers using the codes below.

List I List II

(A) XeO4 (I) Square Planar

(B) BrF4- (II) Tetrahedral

(C) SeCl4 (III) Distorted Octahedral

(a) (A-II) (B-III) (C-I)

(b) (A-III) (B-I) (C-II)

(c) (A-II) (B-I) (C-III)

(d) (A-I) (B-II) (C-III)

Answer: (c)

Q10. Total number of lone pairs of electrons in I3- is

(a) 0

(b) 3

(c) 6

(d) 9

Answer: (d)

Q11. Which among CO32-, SO3, XeO3 and NO3- have planar structure?

(a) CO32-, SO3, XeO3

(b) SO3, XeO3, NO3-

(c) CO32-, XeO3, NO3-

(d) CO32-, SO3, NO3-

Answer: (a)

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