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Chemical Bonding and Molecular Structure question

2012 · Q80
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Chemical Bonding and Molecular Structure question

2012 · Q80

NEETChemistryChemical Bonding and Molecular StructureMCQ+4 / −1
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them
  1. A
    NO<O2−<C22−<He2+NO \lt {O_2}^ - \lt {C_2}^{2 - } \lt He_2^ +NO<O2​−<C2​2−<He2+​
  2. B
    O2−<NO<C22−<He2+{O_2}^ - \lt NO \lt {C_2}^{2 - } \lt He_2^ +O2​−<NO<C2​2−<He2+​
  3. C
    C22−<He2+<O2−<NO{C_2}^{2 - } \lt He_2^ + \lt {O_2}^ - \lt NOC2​2−<He2+​<O2​−<NO
  4. D
    He2+<O2−<NO<C22−He_2^ + \lt {O_2}^ - \lt NO \lt {C_2}^{2 - }He2+​<O2​−<NO<C2​2−
View written solutionFree

Correct answer: D

Diatomic speciesBond order
NO2.5
$O_2^-$1.5
$C_2^{2-}$3.0
$He_2^+$0.5
The increasing order: $$He_2^ + \lt {O_2}^ - \lt NO \lt {C_2}^{2 - }$$
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