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ChemistryMediumMCQ2008 · Unknown

Q38.Which one of the following pairs of species have the same bond order? (1) CN− and NO+ (2) CN− and CN+ (3) O−2 and CN− (4) NO+ and CN+

What This Question Tests

This question requires calculating the bond order for different diatomic species. CN⁻ has (6+7)+1 = 14 electrons, giving a bond order of 3. NO⁺ has (7+8)-1 = 14 electrons, also giving a bond order of 3. Thus, CN⁻ and NO⁺ have the same bond order.

Concepts Tested

Molecular Orbital TheoryCalculation of bond order from electron count

Formulas Used

Bond Order = (Number of bonding electrons - Number of antibonding electrons) / 2

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