Chemical Bonding - Result Question 58
33. Which of the following is paramagnetic?
(a) $O _2^{-}$
(b) $CN^{-}$
(c) $CO$
(d) $NO^{+}$
$(1989,1 M)$
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Answer:
Correct Answer: 33. (a)
Solution:
- $O _2^{-}$ has odd number of electrons, hence it is paramagnetic.