SATHEE: Chemical Bonding And Molecular Structure Question 304

Chemical Bonding And Molecular Structure Question 304

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

Options:

A) $C_{2} \to {C^{+}}_{2}$

B) $N O \to N O^{+}$

C) $O_{2} \to {O^{+}}_{2}$

D) $N_{2} \to {N^{+}}_{2}$

Show Answer

Answer:

Correct Answer: B

Solution:

(1) $C_{2} :$ Bond order 2 diamagnetic.

${C^{+}}_{2} :$ Bond order 1.5 paramagnetic.

(2) $N O :$ 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 $N O \to N O^{+}$ , electron is removed form antibonding molecular orbital, hence bond order increases and nature changes form paramagnetic to diamagnetic.

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Chemical Bonding And Molecular Structure Question 304

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

Options:

Answer:

Solution:

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