Question

Acetic acid was added to a solid X kept in a test tube. A colourless and odourless gas Y was evolved. The gas was passed through lime water which turned milky. It was concluded that
(1) Solid X is sodium hydroxide and the gas Y is CO2 .
(2) Solid X is sodium carbonate and the gas Y is CO2.
(3) Solid X is sodium acetate and the gas Y is CO2 .
(4) Solid X is sodium hydrogen carbonate and the gas Y is SO2

Answer 1

Answer:

4 ..........................