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Q.

A chemical compound ‘X’ is used in soda acid fire extinguishers and is also an ingredient in antacids.

a) Identify ‘X’ and give its chemical formula.

b) Write a chemical equation for its preparation starting from sodium chloride is?

c) When this compound is heated strongly then produces?

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a

a) washing soda, b)

, c) carbon monoxide

b

a) baking soda, b)

, c) carbon dioxide

c

a) washing soda, b)

, c) carbon dioxide

d

a) baking soda, b)

, c) carbon monoxide

answer is B.

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Detailed Solution

Concept: Baking soda, often known as sodium bicarbonate, is a chemical substance having the formula. It is a salt composed of the anion of bicarbonate and the cation of sodium. Although it is a white crystalline solid, sodium bicarbonate frequently takes the form of a fine powder. Baking soda is a basic compound used as an antacid and fire extinguisher.

N a H C O 3

can be prepared from sodium chloride using carbon monoxide, ammonia and water. The purity of

obtained is less by this reaction.

When heated strongly, it produces carbon dioxide. This property helps to act as the fire extinguisher. The reaction involved is as follows-

So, the correct answers are-
a) Baking soda,

b)

c) produces carbon dioxide.
Hence, the correct answer is option 2.

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