Question

observation -- A lump of wood charcoal is slipped into the test tube containing ammonia gas over mercury.​

Answer 1

Answer:

Solution:

(a) Saloni should add some water in the test tube in which gas was collected. Shake the test tube and then bring a litmus paper near the test tube. The solution will turn litmus paper red. This shows that the gas is acidic.

(b)Charcoal contains carbon which on burning forms carbon dioxide gas.

C + 02- CO2

The gas evolved is collected in a test tube and water is added to it.

CO2 + H2O + H2CO3

Answer 2

Attachment refer

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