Chemistry, asked by keshabmohanta43, 4 days ago

How can you show that a chemical reaction involves evolution of gas?

Answers

Answered by harishbabui7122006

Answer:

In a chemical reaction, the gas is evolved as product. Most of the gas evolution reactions can be carried out in fume chamber. some chemical reactions are characterized by change in color. Citric acid reacts with potassium permanganate, then the purple colour disappears

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