Question 1

Which type of bond is primarily formed by the side-to-side overlap of p orbitals?

Accepted Answer

Pi bond

Answer

Covalent bond

Answer

Sigma bond

Answer

Ionic bond

Question 2

In which type of bond do the electron density and atomic nuclei lie along the bond axis?

Accepted Answer

Sigma bond

Answer

Metallic bond

Answer

Pi bond

Answer

Hydrogen bond

Question 3

Which of the following molecules contains both sigma and pi bonds?

Accepted Answer

C2H4 (ethylene)

Answer

O2 (oxygen)

Answer

H2 (hydrogen)

Answer

N2 (nitrogen)

Question 4

Which of the following statements is true regarding the relative strength of sigma and pi bonds?

Accepted Answer

Sigma bonds are generally stronger than pi bonds

Answer

Sigma and pi bonds have equal strength

Answer

Pi bonds are generally stronger than sigma bonds

Answer

The strength of sigma and pi bonds depends on the type of atom involved

Question 5

What is the maximum number of pi bonds that can be formed in a triple bond between two atoms?

Accepted Answer

2 pi bonds

Answer

3 pi bonds

Answer

4 pi bonds

Answer

1 pi bond

Question 6

Which molecular feature is characteristic of benzene?

Accepted Answer

A planar ring structure with delocalized electrons

Answer

A three-dimensional tetrahedral structure

Answer

A linear aliphatic structure

Answer

A branched chain structure

Question 7

What is the hybridization of the carbon atoms in benzene?

Accepted Answer

sp2

Answer

sp

Answer

d2sp3

Answer

sp3

Question 8

In geometric isomers, what is the distinction between 'cis' and 'trans' isomers?

Accepted Answer

'Cis' isomers have similar groups on the same side, while 'trans' isomers have them on opposite sides.

Answer

'Cis' refers to the presence of double bonds, while 'trans' does not.

Answer

'Cis' and 'trans' are identical with different molecular weights.

Answer

'Cis' isomers have no similarity in groups, while 'trans' isomers do.

Question 9

Which of the following compounds can exhibit geometric isomerism?

Accepted Answer

2-butene (C4H8)

Answer

Hexane (C6H14)

Answer

Cyclohexane (C6H12)

Answer

Propane (C3H8)

Question 10

What is a key feature that allows the existence of geometric isomers?

Accepted Answer

A double bond or a rigid ring structure

Answer

Hydrogen bonding

Answer

A single bond

Answer

An ionic bond

Question 11

Which of the following compounds cannot exhibit geometric isomerism due to its structure?

Accepted Answer

Ethane (C2H6)

Answer

Cyclopropane (C3H6)

Answer

1,2-dichloroethene (C2H2Cl2)

Answer

2-butene (C4H8)

Question 12

What is the hybridization of the phosphorus atom in phosphorus pentachloride (PCl5)?

Accepted Answer

sp3d

Answer

sp3

Answer

sp2

Answer

d2sp3

Question 13

Which molecular geometry is associated with sp3 hybridization?

Accepted Answer

Tetrahedral

Answer

Octahedral

Answer

Linear

Answer

Trigonal planar

Question 14

Which of the following molecules has sp2 hybridization?

Accepted Answer

Ethene (C2H4)

Answer

Ammonia (NH3)

Answer

Acetylene (C2H2)

Answer

Methane (CH4)

Question 15

What type of hybridization occurs in methane (CH4)?

Accepted Answer

sp3

Answer

sp

Answer

sp2

Answer

d2sp3

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