46 A 46 B 47 A 47 B 48 A 48 B 48 C 49 A 49 B 49 C

Lakhmir Singh & Manjit Kaur - Chemistry

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Q. 46 A5.0( 3 Votes )

When ethanoic acid reacts with sodium hydrogencarbonate, then a salt X is formed and a gas Y is evolved. Name the salt X and gas Y. Describe an activity with the help of a labelled diagram of the apparatus used to prove that the evolved gas is the one which you have named. Also write the chemical equation of the reaction involved.

Class 10th Lakhmir Singh & Manjit Kaur - Chemistry 4. Carbon and Its Compounds

Answer :

Salt X is sodium ethanoate, CH₃COONa; Gas Y is carbon dioxide (CO₂)

Activity:

� Take a boiling test tubes and put about 0.5 g of sodium carbonate in it.

� Also, take another tube and add some lime water in it.

� Then add 2 ml of dilute ethanoic acid in the boiling tube A. We will observe that brisk effervescence of carbon dioxide is produce.

� Pass the gas produced through lime water. Lime water turns milky.

� So, this experiment proves that when ethanoic acid reacts with sodium carbonate, then carbon dioxide gas is produced.

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