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) N2N2+

(c) C2C2+

(b) O2O2+

(d) NONO+

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Solution:

 (d) (a) N2N2+B.O. 32.5

Bond energy decreases Magnetic behaviour changes from diamagnetic to paramagnetic

(b)

Bond energy increases

Magnetic behaviour does not change. (c) C2C2+

B.O. 22.5

Bond energy decreases

Magnetic behaviour changes from diamagnetic to paramagnetic

(d)

NONO+

B.O. 22.5

bond energy increases

Magnetic behaviour changes from paramagnetic to diamagnetic



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