A student is performing an experiment to study the properties of acetic acid. Answer the following questions :(i) Name the substance he must add to acetic acid to produce carbon dioxide. (ii) Give the relevant chemical equation for the reaction.(iii) How would he test CO₂ gas in the laboratory?

Academic Chemistry NCERT Class 10

(i) The substance that must be added to acetic acid to produce carbon dioxide is sodium carbonate (Na₂CO₃) or sodium hydrogen carbonate (NaHCO₃)

(ii) The relevant chemical equation for the reaction is given below:

$CH_{3}COOH+NaHCO_{3}\rightarrow CH_{3}COONa+H_{2}O+CO_{2}$

OR

$2CH_{3}COOH+Na_{2}CO_{3}\rightarrow 2CH_{3}COONa+H_{2}O+CO_{2}$

(iii) The liberated CO₂ (carbon dioxide) gas is passed through lime water which turns milky.

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Updated on: 10-Oct-2022

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