Question

Write the chemical test for carbon dioxide gas.

Answer 1

Carbon dioxide turns limewater milky. A lighted wooden splint goes out in a test tube of carbon dioxide but this happens with other gases, too. So the limewater test is a better choice.

Hope you understand............................

Answer 2

Answer:

Test - Gas bubbled through Lime water

Observation- Limewater turns milky or cloudy white

Inference- Carbon dioxide is present

Explanation:

Carbon dioxide reacts with calcium hydroxide solution to produce a white precipitate of calcium carbonate. Limewater is a solution of calcium hydroxide. If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.