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The C-C bond length is shortest in

  • Option 1)

    C2H6

  • Option 2)

    C2H4

  • Option 3)

    C2H2

  • Option 4)

    C2H5Cl

 

Answers (1)

best_answer

As we learnt in

Bond Order -

Bond order is defined as one half the difference between the number of electrons present in the bonding and the antibonding orbitals.

- wherein

Bond \:Order=\frac{N_{b}-{N_{a}}}{2}

 

 

 

We know thet bond length  \propto \frac{1}{bond \:order}

bond order is highest at 3 with C2H2

\therefore  C-C bond length will be shortest.

 


Option 1)

C2H6

Option is incorrect

Option 2)

C2H4

Option is incorrect

Option 3)

C2H2

Option is correct

Option 4)

C2H5Cl

Option is incorrect

Posted by

prateek

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