Give two examples which illustrate the evolution of a gas during … - Vidyadip

Question

Give two examples which illustrate the evolution of a gas during a chemical reaction.

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Answer

The evolution of a gas during a chemical reaction two examples -
• electricity is passed through Sodium chloride solution, Sodium chloride decomposes into Sodium and, Chlorine gas is evolved.
• When Zinc is placed in Sulphuric acid, Zinc is more reactive than Hydrogen displaces it from the acid, and forms zinc sulfate and hydrogen gas.

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