h) Give an example along with equation which can prove evolution of CO2 in the
reaction.
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Answer:
A gas evolution reaction is a chemical reaction in which one of the end products is a gas such as oxygen or carbon dioxide.Gas evolution reactions may be carried out in a fume chamber when the gases produced are poisonous when inhaled or explosive.
Explanation:
A replacement reaction concerning zinc metal and hydrogen chloride (dilute hydrochloric acid):
In this example, hydrogen gas in diatomic form is released. Dilute sulphuric acid can also be used in place of dilute hydrochloric acid.2HCl + F_2 -> 2HF + Cl_2
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