Question

When sodium salt of carboxylic acid A is heated with soda lime (NaOH +CaO) gas B is produced. Gas B is also called Marsh Gas. Write the molecular weight of the carboxylic acid used to produce the above sodium salt.​

Answer 1

The gas evolved is ethane.

Equation:

                                             CaO

C(2)H(5)COONa + NaOH ------> C(2)H(6) + Na(2)CO(3).

    This reaction proceeds with the application of heat; this type of reaction in which CO(2) molecule is removed from a carboxylic acid is called decarboxylation.

Answer 2

Answer:

The gas evolved is ethane.

Equation:

                                             CaO

C(2)H(5)COONa + NaOH ------> C(2)H(6) + Na(2)CO(3).

    This reaction proceeds with the application of heat; this type of reaction in which CO(2) molecule is removed from a carboxylic acid is called decarboxylation.