Carboxylic acids upon treatment with electropositive liberates a colourless gas which give pop sound with burning splinter . The gas responsible for this behaviour is
CO2
H2
NO2
O2
As we learnt ,
Reaction of carboxylic acid with electropositive metals -
A colourless gas (H2) is liberated which give pop sound with burning splinter involves cleavage of C - OH bond.
- wherein
H2 is liberated in the given reaction .