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प्रश्न
With the help of an appropriate example, justify that some of the chemical reactions are determined by the evolution of a gas.
Give a chemical equation for the reaction involved in the above case.
Give one example of a chemical reaction characterised by the evolution of a gas.
रासायनिक समीकरणे/रचना
औचित्य
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उत्तर
When zinc granules react with dilute sulphuric acid in a flask, hydrogen gas evolves, and zinc sulphate solution is formed.
\[\ce{Zn_{(s)} + H2SO4_{(aq)} -> ZnSO4_{(aq)} + H2_{(g)}}\]
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Notes
Students should refer to the answer according to their questions.
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Chemical Reactions and Equations - Exercise 1 [पृष्ठ ३०]
