Chapter 12, Problem 10A

(a)

Interpretation Introduction

Interpretation:

The polar covalent bond in the given molecule is to be identified.

Concept introduction:

Covalent bond is formed by sharing of electrons between the atoms forming the bonds

Polar covalent bond is formed between two different atoms.The bond formed is polar when there is electronegativity difference between the atoms forming the bond due to which atoms gets polarity.More electronegative atom acquires partially negative charge and less electronegative atom acquires partial positive charge.

Answer to Problem 10A

  $H_{2}O$ contains $O-H$ polar bond

Explanation of Solution

The structure of water is:

  

It contains two $O-H$ bonds which are polar

(b)

Interpretation Introduction

Interpretation:

The polar covalent bond in the given molecule is to be identified.

Concept introduction:

Covalent bond is formed by sharing of electrons between the atoms forming the bonds

Polar covalent bond is formed between two different atoms.The bond formed is polar when there is electronegativity difference between the atoms forming the bond due to which atoms gets polarity.More electronegative atom acquires partially negative charge and less electronegative atom acquires partial positive charge.

Answer to Problem 10A

  $CO$ contains $O-C$ polar bond

Explanation of Solution

The structure of $CO$is:

  

It contains one $O-C$ bond which is polar

(c)

Interpretation Introduction

Interpretation:

The polar covalent bond in the given molecule is to be identified.

Concept introduction:

Covalent bond is formed by sharing of electrons between the atoms forming the bonds

Polar covalent bond is formed between two different atoms.The bond formed is polar when there is electronegativity difference between the atoms forming the bond due to which atoms gets polarity.More electronegative atom acquires partially negative charge and less electronegative atom acquires partial positive charge.

Answer to Problem 10A

  $F_2$ contains no polar bond

Explanation of Solution

The structure of $F_2$is:

  

The bond is formed between same atoms. So it is no-polar bond.

(d)

Interpretation Introduction

Interpretation:

The polar covalent bond in the given molecule is to be identified.

Concept introduction:

Covalent bond is formed by sharing of electrons between the atoms forming the bonds

Polar covalent bond is formed between two different atoms.The bond formed is polar when there is electronegativity difference between the atoms forming the bond due to which atoms gets polarity.More electronegative atom acquires partially negative charge and less electronegative atom acquires partial positive charge.

Answer to Problem 10A

  $N_2$ contains no polar bond

Explanation of Solution

The structure of $N_2$is:

  

The bond is formed between same atoms. So it is no-polar bond.