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NEET 2017
Exam
NEET
Year
2017
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

NEET 2017 · Chemistry · Chemical Bonding and Molecular Structure

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

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

Options

  1. ACO,NOCO, NO
  2. BO2,NO+{O}_{2}, {NO}^{+}
  3. CCN−,CO{CN}^{-}, CO
  4. DN2,O2−{N}_{2}, {O}_{2}^{-}

Correct answer

C. CN−,CO{CN}^{-}, CO

Step-by-step solution

Total number of electrons in CN−=14{CN}^{-} = 14

Total number of electrons in CO=14CO = 14

CN−{CN}^{-} and COCO both have bond order of 33 each.
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