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BITSAT2017ChemistryGeneral Organic ChemistryActual

In the compound, CH 2 ( I ) = CH ( II ) - C ≡ CH ( III ) The most acidic hydrogen atom is

Options

  1. AOnly I
  2. BOnly II
  3. COnly III
  4. DAll are equally acidic

Correct answer

C. Only III

Step-by-step solution

The hydrogen attached with most electronegative carbon will be the most acidic. The hydrogen, attached with sp -hybrid C -atom is most acidic because of highest electronegativity of sp hybrid carbon atom, H atom becomes relatively more acidic.

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