Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

Why terminal alkynes are acidic in nature?
Asked by priyanegipn29767 | 04 Feb, 2019, 09:15: AM
answered-by-expert Expert Answer

Acidity also depends on the stability of the conjugate base formed.

CH subscript 3 minus straight C identical to straight C minus straight H space rightwards arrow over leftwards arrow with blank on top space CH subscript 3 minus straight C identical to straight C to the power of minus space space plus space straight H to the power of plus

When terminal alkynes lose a proton, it forms an acetylide ion which a stable conjugate base.

As we know sp-hybridised carbon is electronegative in nature because it has 50% s-character hence it will hold the negative charge effectively.

Hence terminal alkynes are acidic in nature.

Answered by Ramandeep | 04 Feb, 2019, 11:59: AM
CBSE 11-science - Chemistry
Asked by Omkshirsagar56 | 20 Sep, 2019, 10:12: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Vrushabh | 09 Feb, 2019, 12:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by priyanegipn29767 | 04 Feb, 2019, 09:15: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 24 Jul, 2014, 09:54: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 01 Jun, 2016, 02:10: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 01 Jun, 2016, 02:11: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 24 Jul, 2014, 10:10: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 01 Jun, 2016, 02:11: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×