Question

Name the hydrocarbon which contain acidic hydrogen

Answer 1

Alkynes show slightly acidic character.

1 – Alkynes behave as weak acids, because of more electronegativity of sp- hybridized carbon (triple bonded carbon).

Alkanes and Alkenes does not show this character.

The hydrogen which is attached to triple bonded carbon can lose as H⁺ ion, this is the reason for the weak acidic character of 1- Alkynes.

Following reactions proves the acidic character of 1 – Alkynes.

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Answer 2

H2SO4 is a hydrocarbon w/acidic 2 hydrogen.

Acidic hydrogen are those hydrogen atom which are attached to more electronegative atom like F, O, etc. and can be dissociated into ions.