QBManager

Chemical Bonding and Molecular Structure

12435 Which of the following has the highest dipole moment

1

\begin{matrix} ^{H} \\ _{H} \end{matrix} \begin{matrix} ∖ \\ / \end{matrix} C = O

2

{C_{|}^{|}}_{C H_{3}}^{H} = \underset{H}{\overset{C H_{3}}{C_{|}^{|}}}

3

{C_{|}^{|}}_{C H_{3}}^{C H_{3}} = \underset{H}{\overset{H}{C_{|}^{|}}}

4

{C_{|}^{|}}_{C H_{3}}^{C l} = {C_{|}^{|}}_{C l}^{C H_{3}}

Chemical Bonding and Molecular Structure

12750 In the compound $M - O - H$ , the $M - O$ bond will be broken if

1

Δ (E N)

of

M

and

O < Δ (E N)

of

O

and

H

2

Δ (E N)

of

M

and

O = Δ (E N)

of

O

and

H

3

Δ (E N)

of

M

and

O > Δ (E N)

of

O

and

H

4 Can not be predicted according to

Δ (E N)

data

Explanation:

If electronegativity difference of $M - O$ is greater than $O - H$ , then $M - O$ bond will be broken and $M^{+}$ and $O H^{-}$ ions will form.

Chemical Bonding and Molecular Structure

12308 The difference in energy between the molecular orbital formed and the combining atomic orbitals is called

1 Bond energy

2 Activation energy

3 Stabilization energy

4 Destabilization energy

Chemical Bonding and Molecular Structure

12332 Which of the following is paramagnetic

1

O_{2}^{+}

2

C N^{-}

3

C O

4

N_{2}

Explanation:

(a) $B . O . =$ $\frac{1}{2} [10 - 5] = \frac{5}{2} = 2.5$ , paramagnetic

Chemical Bonding and Molecular Structure

12435 Which of the following has the highest dipole moment

1

\begin{matrix} ^{H} \\ _{H} \end{matrix} \begin{matrix} ∖ \\ / \end{matrix} C = O

2

{C_{|}^{|}}_{C H_{3}}^{H} = \underset{H}{\overset{C H_{3}}{C_{|}^{|}}}

3

{C_{|}^{|}}_{C H_{3}}^{C H_{3}} = \underset{H}{\overset{H}{C_{|}^{|}}}

4

{C_{|}^{|}}_{C H_{3}}^{C l} = {C_{|}^{|}}_{C l}^{C H_{3}}

Chemical Bonding and Molecular Structure

12750 In the compound $M - O - H$ , the $M - O$ bond will be broken if

1

Δ (E N)

of

M

and

O < Δ (E N)

of

O

and

H

2

Δ (E N)

of

M

and

O = Δ (E N)

of

O

and

H

3

Δ (E N)

of

M

and

O > Δ (E N)

of

O

and

H

4 Can not be predicted according to

Δ (E N)

data

Explanation:

If electronegativity difference of $M - O$ is greater than $O - H$ , then $M - O$ bond will be broken and $M^{+}$ and $O H^{-}$ ions will form.

Chemical Bonding and Molecular Structure

12308 The difference in energy between the molecular orbital formed and the combining atomic orbitals is called

1 Bond energy

2 Activation energy

3 Stabilization energy

4 Destabilization energy

Chemical Bonding and Molecular Structure

12332 Which of the following is paramagnetic

1

O_{2}^{+}

2

C N^{-}

3

C O

4

N_{2}

Explanation:

(a) $B . O . =$ $\frac{1}{2} [10 - 5] = \frac{5}{2} = 2.5$ , paramagnetic

Chemical Bonding and Molecular Structure

12435 Which of the following has the highest dipole moment

1

\begin{matrix} ^{H} \\ _{H} \end{matrix} \begin{matrix} ∖ \\ / \end{matrix} C = O

2

{C_{|}^{|}}_{C H_{3}}^{H} = \underset{H}{\overset{C H_{3}}{C_{|}^{|}}}

3

{C_{|}^{|}}_{C H_{3}}^{C H_{3}} = \underset{H}{\overset{H}{C_{|}^{|}}}

4

{C_{|}^{|}}_{C H_{3}}^{C l} = {C_{|}^{|}}_{C l}^{C H_{3}}

Chemical Bonding and Molecular Structure

12750 In the compound $M - O - H$ , the $M - O$ bond will be broken if

1

Δ (E N)

of

M

and

O < Δ (E N)

of

O

and

H

2

Δ (E N)

of

M

and

O = Δ (E N)

of

O

and

H

3

Δ (E N)

of

M

and

O > Δ (E N)

of

O

and

H

4 Can not be predicted according to

Δ (E N)

data

Explanation:

If electronegativity difference of $M - O$ is greater than $O - H$ , then $M - O$ bond will be broken and $M^{+}$ and $O H^{-}$ ions will form.

Chemical Bonding and Molecular Structure

12308 The difference in energy between the molecular orbital formed and the combining atomic orbitals is called

1 Bond energy

2 Activation energy

3 Stabilization energy

4 Destabilization energy

Chemical Bonding and Molecular Structure

12332 Which of the following is paramagnetic

1

O_{2}^{+}

2

C N^{-}

3

C O

4

N_{2}

Explanation:

(a) $B . O . =$ $\frac{1}{2} [10 - 5] = \frac{5}{2} = 2.5$ , paramagnetic

Chemical Bonding and Molecular Structure

12435 Which of the following has the highest dipole moment

1

\begin{matrix} ^{H} \\ _{H} \end{matrix} \begin{matrix} ∖ \\ / \end{matrix} C = O

2

{C_{|}^{|}}_{C H_{3}}^{H} = \underset{H}{\overset{C H_{3}}{C_{|}^{|}}}

3

{C_{|}^{|}}_{C H_{3}}^{C H_{3}} = \underset{H}{\overset{H}{C_{|}^{|}}}

4

{C_{|}^{|}}_{C H_{3}}^{C l} = {C_{|}^{|}}_{C l}^{C H_{3}}

Chemical Bonding and Molecular Structure

12750 In the compound $M - O - H$ , the $M - O$ bond will be broken if

1

Δ (E N)

of

M

and

O < Δ (E N)

of

O

and

H

2

Δ (E N)

of

M

and

O = Δ (E N)

of

O

and

H

3

Δ (E N)

of

M

and

O > Δ (E N)

of

O

and

H

4 Can not be predicted according to

Δ (E N)

data

Explanation:

If electronegativity difference of $M - O$ is greater than $O - H$ , then $M - O$ bond will be broken and $M^{+}$ and $O H^{-}$ ions will form.

Chemical Bonding and Molecular Structure

12308 The difference in energy between the molecular orbital formed and the combining atomic orbitals is called

1 Bond energy

2 Activation energy

3 Stabilization energy

4 Destabilization energy

Chemical Bonding and Molecular Structure

12332 Which of the following is paramagnetic

1

O_{2}^{+}

2

C N^{-}

3

C O

4

N_{2}

Explanation:

(a) $B . O . =$ $\frac{1}{2} [10 - 5] = \frac{5}{2} = 2.5$ , paramagnetic

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