Which one of the following pairs of species have the same bond order? - Chemistry MCQ NEET 2017 2026 | ExamTest.live | ExamTest.live

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Which one of the following pairs of species have the same bond order?

A $CO, NO$
B $O_{2}, NO^{+}$
C $CN^{-}, CO$
D $N_{2}, O_{2}^{-}$

Solution & Step-by-step Explanation

Species with the same number of electrons (isoelectronic) have the same bond order. CN^{-} : 6 (C) + 7 (N) + 1 = 14 electrons. CO : 6 (C) + 8 (O) = 14 electrons.Both have 14 electrons, which corresponds to a triple bond (bond order 3).

Practice this question

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Which one of the following pairs of species have the same bond order?

A

CO, NO

B

O_{2}, NO^{+}

C

CN^{-}, CO

D

N_{2}, O_{2}^{-}

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Chemical Bonding Bond Order

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