Carbon: An Important Element — Science STD 9 — Question
Maharashtra BoardEnglish MediumSTD 9ScienceCarbon: An Important Element3 Marks
Question
Give the uses of Carbon dioxide.
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Answer
Uses of Carbon dioxide are:
$CO _2$ is used to make aerated drinks
Solid carbon dioxide is used in cold storage and also to keep milk and milk products and frozen substances cool during transport. It is also used for getting special effects of a mist in dramas and movies.
$CO _2$ obtained by chemical reaction or kept under pressure is used in fire extinguishers.
Liquified $CO _2$ is used to remove caffeine from coffee.
Liquid $CO _2$ is used as solvent in modern eco-friendly dry cleaning.
Plants use $CO _2$ in air for photosynthesis.
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