Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. (a) How will she find the nature of the gas? (b) Write down word equations of all the reactions taking place in this process.

Question

Philoid · Accepted Answer

After Saloni has collected the gas evolved in the test tube.
(a) Add a few drops of water in the test tube containing gas. Now, cover the test tube and shake it well. After shaking, test the solution with blue litmus and red litmus. It will turn blue litmus red. Thus, the gas is acidic in nature. If it would not have changed the colour of litmus that means gas was basic.

(b) Charcoal reacts with oxygen to form carbon dioxide gas.

C (Carbon from Charcoal) ⁺O₂ (Oxygen) ^→ CO₂ (Carbon Dioxide)

Carbon dioxide reacts with water to form carbonic acid, which turns blue litmus paper red.

CO₂ (Carbon Dioxide) ⁺H₂O (Water) ^→ H₂CO₃ (Carbonic Acid)

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.(a) How will she find the nature of the gas?(b) Write down word equations of all the reactions taking place in this process.

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will she find the nature of the gas?
(b) Write down word equations of all the reactions taking place in this process.