Carbon: An Important Element — Science STD 9 — Question
Maharashtra BoardEnglish MediumSTD 9ScienceCarbon: An Important Element5 Marks
Question
Practical uses of $CO_2$.
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Answer
$CO _2$ is used to make aerated drinks.
$CO _2$ 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 modem eco-friendly dry cleaning.
Solid carbon dioxide is used in cold storage and 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.
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