write a short note on Evaluation of gas??
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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.
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Evolution of gas simply means that when a chemical reaction is carried out then a gas is also formed as one of the products. ... For example, consider the reaction between zinc granules and dilute hydrochloric acid. Zinc is more reactive than hydrogen. So, when it reacts with dilute HCl, it displaces H.
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