Quiz | Covalent Bonding

1

The double bond of an alkene is composed of:

1 σ + 1 π bond

1 σ + 1 lone pair of electrons

2 σ bonds

2 π bonds

2

Which of the following statements about σ molecular orbital is incorrect?

It may result from overlap of p atomic orbitals perpendicular to the molecular axis

It may result from overlap of 2 s atomic orbitals

It may be either bonding or antibonding

None of the above

3

What type of hybrid orbitals are involved in bonding of CO2?

sp

sp2

sp3

sp3d

4

What type of hybrid orbitals are involved in bonding of ClO3-?

sp

sp2

sp3

sp3d

5

Which of the following statements is incorrect?

Bonding MO is lower in energy than the AOs

Number of hybrid orbitals formed = number of atomic orbitals combined

sp3d hybridization is the combination of 1 s-orbital + 3 p-orbitals + 1 d-orbital

2 overlapping atomic orbitals may form 2 bonding molecular orbitals

6

What is the number of unpaired electrons in the B2 molecule?

0

1

2

4

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