Few drops of lemon juice are poured over solid sodium carbonate, when lot of
effervescence takesbplace with the evolution of a colorlessgas. The gas evolved is
a. Carbon dioxide
b. Hydrogen
c. Carbon monoxide
d. Methane
Answers
Answered by
4
the gas evolved is carbon di oxide...... the reason is lemon contains citric acid when an acid react with a metal carbonate ,there will always be a evolution of carbon di oxide.
Answered by
1
The gas evolved is carbon dioxide.
(OPTION C)
- The citric acid is an acid and the sodium carbonate is a base. So when they react with each other they takes part in a neutralization reaction.
- As a result a salt , carbon dioxide gas and water is produced from the chemical reaction.
- The carbon dioxide is also colourless gas which fulfills the criterias mentioned in the question.
Chemical reaction :
H3C6H5O7 (Citric acid) + Na2CO3--->Na3C6H5O7 + CO2 (Colourless)+ H2O
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