West Bengal Police Constable Special Mock Test

Chemistry - Chemical Bond & Molecular Structure

1 / 10

1) Which of the following compounds has a triple bond in its molecular structure?

A) Ethyne

B) Ethene

C) Butane

D) Ethane

2 / 10

2) Which statement best describes the concept of hybridization in the context of chemical bonding in organic molecules?

A) Hybridization involves the redistribution of electrons among molecular orbitals

B) Hybridization involves the mixing of atomic orbitals to form new hybrid orbitals

C) Hybridization is the process of electron transfer between atoms

D) Hybridization is the splitting of molecular orbitals into atomic orbitals

3 / 10

3) A molecule exhibits sp3d2 hybridization. Which of the following geometries is the molecule most likely to adopt?

A) Trigonal bipyramidal

B) Tetrahedral

C) Octahedral

D) Square planar

4 / 10

4) Which of the following hybridizations results in a square planar molecular geometry, and is typically observed in complex compounds of transition metals?

A) sp3

B) dsp2

C) sp3d

D) sp2

5 / 10

5) In terms of molecular orbital theory, which of the following statements best describes the concept of antibonding orbitals?

A) Antibonding orbitals contain electrons that do not contribute to bonding

B) Antibonding orbitals result in increased bond strength

C) Antibonding orbitals are not involved in chemical reactions

D) Antibonding orbitals have lower energy than bonding orbitals

6 / 10

6) In VSEPR theory, which molecular shape is expected for a molecule with four bonding pairs and one lone pair on the central atom?

A) Tetrahedral

B) Trigonal pyramidal

C) See-saw

D) Bent

7 / 10

7) In the context of molecular orbital theory, which of the following statements is true regarding the bond order of diatomic nitrogen (N2) molecule?

A) Bond order is 4, indicating a quadruple bond

B) Bond order is 1, indicating a single bond

C) Bond order is 3, indicating a triple bond

D) Bond order is 2, indicating a double bond

8 / 10

8) A compound is observed to be non-polar despite having polar bonds. Which of the following geometric arrangements is most likely responsible for its non-polar nature?

A) Linear

B) Trigonal pyramidal

C) T-shaped

D) Bent

9 / 10

9) In a molecule where the central atom forms three sigma bonds and has one lone pair, what is the expected molecular geometry?

A) Trigonal planar

B) Tetrahedral

C) Bent

D) Trigonal pyramidal

10 / 10

10) In molecular orbital theory, which molecular orbital configuration is most likely to describe the stability and magnetic properties of the O2 molecule?

A) σ2σ*2σ3σ*3

B) σ2σ*2π2π*2

C) σ2σ*1π2π*2

D) σ2π2π*4σ*1

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Curriculum

Chemistry (Chemical Bond & Molecular Structure রাসায়নিক বন্ধন এবং আণবিক গঠন)

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