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

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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 O 2 + 2 . 5 3 B . M N 2 + 2 . 5 3 B . M NO + 3 0 O 2 - 1 . 5 3 B . M

Species	Bond Order	Magnetic moment
$HC \equiv C^{-}$	$3$	$0$
${O_{2}}^{+}$	$2.5$	$\sqrt{3} B . M$
${N_{2}}^{+}$	$2.5$	$\sqrt{3} B . M$
${NO}^{+}$	$3$	$0$
${O_{2}}^{-}$	$1.5$	$\sqrt{3} B . M$

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