Question

evolution of gas is one of the characteristics of chemical equations
a.true b false​

Answer 1

Answer:

Some chemical reactions are characterised by the evolution of gas. For Ex:1)Reaction between zinc and dilute sulphuric acid to form hydrogen gas. 2)Reaction between sodium carbonate and dilute hydrochloric acid to form carbon dioxide gas. Some chemical reactions are characterised by the formation of precipitate

Answer 2

Answer = true

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Explanation:

yes it is chemical equations