Arrange the following compounds in the decreasing
order of acidic character.
I. Butane II. But-1-ene III. But-1-yne IV.Butan-1-ol

(I)>(II)>(III)>(IV)

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(IV)>(II)>(III)>(I)

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(IV)>(III)>(II)>(I)

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(I)>(III)>(II)>(IV)

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Solution

The correct option is D (IV)>(III)>(II)>(I)
Acidic character depends on the ability of a compound to donate H+ ion
General trend is following as hydrogen attached to oxygen is more acidic.
Alcohols > Alkynes > Alkenes > Alkanes.

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