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NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice

The correct order of increasing bond length of C - H , C - O , C - C and C = C is

Options

  1. AC - H < C = C < C - O < C - C
  2. BC - C < C = C < C - O < C - H
  3. CC - O < C - H < C - C < C = C
  4. DC - H < C - O < C - C < C = C

Correct answer

A. C - H < C = C < C - O < C - C

Step-by-step solution

TheC−Hbond is the shortest due to the small size of both atoms & large electronegativity difference. The double bonds are shorter than single bonds. HenceC=C

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