JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Question Bank Mock Test - Chemical Bonding Molecular Structure

In which of the following ionization processes, the bond order has increased and the magnetic behavior has changed?

A) \[{{C}_{2}}\to {{C}^{+}}_{2}\]

B) \[NO\to N{{O}^{+}}\]

C) \[{{O}_{2}}\to {{O}^{+}}_{2}\]

D) \[{{N}_{2}}\to {{N}^{+}}_{2}\]

Correct Answer: B

Solution :

[b] (1) \[{{C}_{2}}:\]Bond order 2 diamagnetic.

\[{{C}^{+}}_{2}:\]Bond order 1.5 paramagnetic.

(2) \[NO:\]Bond order 2.5 paramagnetic.

\[N{{O}^{+}}:\]Bond order 3 diamagnetic.

(3) \[{{O}_{2}}:\]Bond order 2 paramagnetic.

\[{{O}^{+}}_{2}:\]Bond order 2.5 paramagnetic.

(4) \[{{N}_{2}}:\]Bond order 3 paramagnetic.

\[{{N}^{-}}_{2}:\]Bond order 2.5 diamagnetic.

Thus, in \[NO\to N{{O}^{+}}\], electron is removed form antibonding molecular orbital, hence bond order increases and nature changes form paramagnetic to diamagnetic.

Report Error

JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Question Bank Mock Test - Chemical Bonding Molecular Structure

question_answer In which of the following ionization processes, the bond order has increased and the magnetic behavior has changed? A) \[{{C}_{2}}\to {{C}^{+}}_{2}\] B) \[NO\to N{{O}^{+}}\] C) \[{{O}_{2}}\to {{O}^{+}}_{2}\] D) \[{{N}_{2}}\to {{N}^{+}}_{2}\]

In which of the following ionization processes, the bond order has increased and the magnetic behavior has changed?

A) \[{{C}_{2}}\to {{C}^{+}}_{2}\]

B) \[NO\to N{{O}^{+}}\]

C) \[{{O}_{2}}\to {{O}^{+}}_{2}\]

D) \[{{N}_{2}}\to {{N}^{+}}_{2}\]