Punjab 11th Class Chemistry Chapter 6 Chemical Bonding MCQs Test Online

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Question 1 of 6

Chemistry

1. Which of the following molecules has zero dipole moment?

1.H2O

2.BF3

3.CHCI2

4.NH3

Question 1 of 6

Question 2 of 6

2. Which of the hydrogen halides has the highest percentage of ionic character

1.HBr

2.HF

3.HCI

4.HI

Question 2 of 6

Question 3 of 6

3. Which or the following species has unpaired electrons in antibonding molecular orbitals?

1.O₂²⁺

2.N₂^-2

3.F2

4.B2

Question 3 of 6

Question 4 of 6

4. The number of bonds in nitrogen molecules is

1.one σ and one π

2.one σ and two π

3.three sigma only

4.two σ and one π

Question 4 of 6

Question 5 of 6

5. An ionic compound A+ IT is most likely to be formed when:

1.The ionization energy of A is low and electron affinity of B is high.

2.Both the ionization energy of A and electron affinity of B are high.

3.Both the ionization energy of A and electron affinity of B are low.

4.The ionization energy of A is high and electron affinity of B is low.

Question 5 of 6

Question 6 of 6

6. Which of the following statements is not correct regarding bonding molecular orbital’s.

1.Every electron in the bonding molecular orbitals contributes to the attraction between atoms.

2.Bonding molecular orbitals are formed when the electron waves undergo constructive interference.

3.Bonding molecular orbitals possess less energy than atomic orbitals form which they are formed.

4.Bonding molecular orbitals have low electron density between the two nuclei.

Question 6 of 6

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