Prabin Kalikote

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Asked Questions

What are the uses of carbon dioxide gas?

The uses of carbon dioxidegas are:
-Green plants use CO₂ during photosynthesis.
-It is used on fire extinguishers.
-It is used to manufacture fertilizers.
-It is used to make soft as well as hard drinks.
-It used in carbonation process to purifysugarcanejuice.

What happens when a mixture of carbon dioxide and water tastes sour?

We all know, CO₂ gas is acidic in nature and wateris neutral. When a mixture of CO₂ and H₂O is madethe mixture will have acidicPH. which stimulates thetaste buds with sour taste.

What happens when calcium bicarbonate solution is heated?

When Ca(HCO₃)₂ solution is heated, it gives calciumcarbonate, water and CO₂.
Ca(HCO₃)₂ -------------> CaCO₃ + H₂O + CO₂

What happens when a balloon filled with CO2 is left free in the air?

A balloon filled with CO₂ left free in the air will fall on the surface of the land because CO₂ cause it to fall due to its higher density than that of air.

What happens when a burning magnesium ribbon is inserted in the gas jar containing CO2?

The ribbon burns in CO₂gaswith dazzling light.

What happens when CO2 is passed into line water for a while?

Lime water turns milky in color due to theformationof insoluble calcium carbonate (CaCO₃).
CO₂ + Ca(OH)₂ -------------> CaCO₃ + H₂O

What is dry ice? Write down one use.

Dry ice is the solid substance formed when CO₂ gasis cooled to below -78c.
-It is used as a refrigerantto preserve foods.