Q. 1 B5.0( 1 Vote )

Answer the following questions.

How is carbon dioxide gas produced in the laboratory?

Answer :

Carbon dioxide gas produced in the laboratory by the following steps:

Step 1: Some pieces of calcium carbonate-CaCO3 (limestone) in a flask is placed.


Step 2: The apparatus is set up as shown in the diagram below:



Step 3: Through a funnel that reaches the base of the flask, dilute hydrochloric acid is poured.


Step 4: The lower end of the funnel tube is dipped into the HCl.


Step 5: A chemical reaction takes place between calcium carbonate and HCl.


Step 6: The carbon dioxide that is evolved will collect in the gas jar by displacement reaction.


Overall reaction: CaCO3 + 2HCl CaCL2 + H2O and 1/2O2


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