A colourless and odourless gas is liberated when hydrochloric acid is ...
Washing soda is chemically sodium carbonate, which is a basic salt. When dilute HCl is added to washing soda, acid base neutralisation reaction takes place and sodium chloride is formed along with water and carbon dioxide. Following is the chemical equation for the reaction
Na2CO3 + 2HCl → 2NaCl + H2O + CO2
Hence, the correct answer is (a) carbon dioxide.
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A colourless and odourless gas is liberated when hydrochloric acid is ...
The gas that is liberated when hydrochloric acid is added to a solution of washing soda is (a) carbon dioxide.
Explanation:
When hydrochloric acid (HCl) is added to a solution of washing soda (sodium carbonate, Na2CO3), a chemical reaction takes place. This reaction is known as an acid-base reaction or a neutralization reaction.
The balanced chemical equation for the reaction between hydrochloric acid and sodium carbonate is as follows:
HCl + Na2CO3 -> NaCl + H2O + CO2
From the equation, we can see that the products of the reaction are sodium chloride (NaCl), water (H2O), and carbon dioxide (CO2).
The gas that is liberated during this reaction is carbon dioxide. Carbon dioxide is a colourless and odourless gas. It is produced when an acid reacts with a carbonate or bicarbonate compound.
The liberation of carbon dioxide gas can be observed through various methods. One way is to collect the gas in an inverted test tube or gas jar filled with water. As the gas is released, it displaces the water and fills the container. The gas can also be identified by passing it through lime water, which turns milky due to the formation of a white precipitate of calcium carbonate.
In conclusion, when hydrochloric acid is added to a solution of washing soda, carbon dioxide gas is liberated. This gas is colourless and odourless, and it can be identified through various techniques such as collecting it in an inverted container or passing it through lime water.
A colourless and odourless gas is liberated when hydrochloric acid is ...
Correct option is (a)carbon dioxide
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