Which gas bubbles are produced in lemon juice?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Hydrogen
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Answer:
c)carbon dioxide.
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These bubbles are formed due to the evolution of carbon dioxide gas. This is a chemical change. In the change, the citric acid contained in lemon juice reacts with the baking soda or sodium bicarbonate) which results in the evolution of carbon dioxide gas.
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