Which one of the following has longest covalent bond distance?

Question

Which one of the following has longest covalent bond distance? (A)  C — C  (B)  C — H  (C)  C — N  (D)  C — O

Tardigrade Admin · Accepted Answer

The average distance between the centre of nuclei of the two bonded atoms in a molecule is known as bond length. It depends upon the size of atoms, hybridisation, steric effect, resonance etc.
Usually bond length of polar bond is smaller as compared to a non-polar bond. Therefore,

C - C

bond length is longest among given options.

Q. Which one of the following has longest covalent bond distance?

$C — C$

$C — H$

$C — N$

$C — O$

Q. Which one of the following has longest covalent bond distance?

C—C

C—H

C—N

C—O

$C — C$

$C — H$

$C — N$

$C — O$