Chemical Bonding and Molecular Structure - Result Question 100
####102. In which of the following ionisation processes the bond energy increases and the magnetic behaviour changes from paramagnetic to diamagnetic?
[NEET Kar. 2013]
(a) $N_2 \to N_2^{+}$
(c) $C_2 \to C_2^{+}$
(b) $O_2 \to O_2^{+}$
(d) $NO \to NO^{+}$
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Solution:
$ \begin{aligned} & \text{ (d) (a) } \\ & N_2 \longrightarrow N_2^{+} \\ & \text{B.O. } 3 \quad 2.5 \end{aligned} $
Bond energy decreases Magnetic behaviour changes from diamagnetic to paramagnetic
(b)
Bond energy increases
Magnetic behaviour does not change. (c) $\quad C_2 \longrightarrow C_2^{+}$
B.O. $2 \quad 2.5$
Bond energy decreases
Magnetic behaviour changes from diamagnetic to paramagnetic
(d)
$ NO \longrightarrow NO^{+} $
B.O. 22.5
bond energy increases
Magnetic behaviour changes from paramagnetic to diamagnetic
