___ is used in the preparation of washing soda, baking powder and urea.

Carbon dioxide

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Oxygen

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Carbon monoxide

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Hydrogen

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Solution

The correct option is A
Carbon dioxide

Carbon dioxide is used in the preparation of washing soda, baking powder and urea. Carbon dioxide is a versatile industrial material, for example, it is used as an inert gas in welding and in fire extinguishers.

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Similar questions

What happens when :

(a) A lit splinter is introduced into a jar containing carbon dioxide?

(b) Moist blue litmus paper is placed in a jar containing carbon dioxide?

(d) A baking mixture containing baking powder is heated?

(e) A soda water bottle is opened?

Fill in the blanks :

(a) ___ product when carbon is burnt in a limited supply of air or oxygen.

(b) Carbon monoxide burns in air with a ___ flame to form carbon dioxide.

(d) A mixture of 95 $%$ oxygen and 5 $%$ carbon dioxide is called ___

(e) Carbon monoxide is used as a ___ in the extraction of pure metals from their corresponding ores.

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