Question

4. Ethanoic acid was added to four test tubes containing the following
chemicals

(i) Sodium carbonate
(ii) Blue litmus solution
(iii) Lime water
(iv) Distilled water.

Which among these is/are the correct option(s) for carrying out a characteristic test for identification of a carboxylic acid (ethanoic acid) in the
laboratory?

(a) i only
(b) iii only
(c) i and ii only
(d) ili and iv​

Answer 1

Answer:

a) i only

Explanation:

2CH3COOH + Na2CO3 ----> 2CH3COONa + H2O + CO2

Effervescence of CO2 gas is characteristic test using Na2CO3.