JEE Main 2023ChemistryChemical Bonding and Molecular StructureEasyMCQ

JEE Main 2023 — Chemical Bonding and Molecular Structure Question with Solution

JEE Main 2023 (12 Apr Shift 1)

Question

The bond order and magnetic property of acetylide ion are same as that of

Choose an option

Show full solutionCorrect option: C
Correct answer
CNO+

Step-by-step explanation

The bond order of the acetylide ion HC≡C- is 3, indicating a triple bond between the carbon atoms.

The acetylide ion consists of two carbon atoms with a triple bond between them and a negative charge. In the triple bond, there are six bonding electrons (two pi bonds and one sigma bond) and zero antibonding electrons.

Among the given options NO+ will have the same bond order and magnetic property like acetylide ion.

Species Bond Order Magnetic moment
HC≡C- 3 0
O2+ 2.5 3 B.M
N2+ 2.5 3 B.M
NO+ 3 0
O2- 1.5 3 B.M

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About this question

This is a previous-year question from JEE Main 2023, covering the Chemical Bonding and Molecular Structure chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.