Question

A student takes Na₂CO₃ powder in a test tube and pours some drops of acetic acid over it. He observes:

(A) no reaction in the test tube

(B) colourless gas with pungent smell

(C) bubbles of a colourless and odourless gas

(D) white fumes with smell of vinegar

Answer 1

Acetic acid reacts with Na₂CO₃ to form sodium acetate, carbon dioxide and water. It is this colourless gas carbon dioxide gas which comes out as bubbles.

The Correct Answer is C