Question

Reena takes some piece of coal and set it on fire in open. She observes that coal produces a gas. She places a moist blue litmus paper over the evolving gas. What will she observe?What shalla be the nature of the gas produced?​

Answer 1

Answer:

Reena needs to add some water in the test tube in which the gas is collected. She needs to cover the tube and shake it well. Now she will test the solution with both red and blue litmus. Blue litmus turns to red which shows that the gas is acidic in nature.

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

C+O

2

⟶CO

2

Carbon dioxide gas reacts with water to form carbonic acid which is acidic in nature and turns blue litmus red.

CO

2

+H

2

O⟶H

2

CO

3

Explanation:

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