Q. The decreasing order of acidic character among ethane , ethene , ethyne and propyne is

 2898  217 KEAMKEAM 2010Hydrocarbons Report Error

Solution:

The correct order of decreasing acidity is


Hydrogen atoms attached to sp-hybridised carbon atom are most acidic, followed by those attached to hybridised carbon atom and those attached to hybridised carbon are least acidic.