Name the salt referred to as sal volatile.

Calcium nitrate

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Potassium nitrate

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Sodium nitrate

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Ammonium carbonate

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Solution

The correct option is D
Ammonium carbonate

Ammonium carbonate is a salt with the chemical formula $(N H_{4})_{2} C O_{3}$ . Commercial samples labelled ammonium carbonate no longer contain this compound, but a mixture that has similar ammonia content. Since it readily degrades to gaseous ammonia and carbon dioxide upon heating, it is used as a leavening agent and also as smelling salt. It is also known as baker's ammonia and was a predecessor to the more modern leavening agents i.e., baking soda and baking powder. It is a component of what was formerly known as sal volatile or salt of hartshorn.

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Similar questions

Identify the odd one out and justify.

(a) Chloride, nitrate, hydride, ammonium

(b) Hydrogen chloride, sodium hydroxide, calcium oxide, ammonia

(d) Ammonium chloride, sodium chloride, potassium nitrate, sodium sulphate

(e) Sodium nitrate, sodium carbonate, sodium sulphate, sodium chloride

(f) Calcium oxide, magnesium oxide, zinc oxide, sodium oxide.

(g) Crystalline blue vitriol, crystalline common salt, crystalline ferrous sulphate, crystalline sodium carbonate.

(h) Sodium chloride, potassium hydroxide, acetic acid, sodium acetate.

Q. Which of the following is not a salt?
(a) calcium carbonate
(b) sodium hydroxide
(c) potassium nitrate
(d) zinc chloride

Write the formulae of the salts given below.

Potassium sulphate, sodium sulphate, calcium sulphate, magnesium sulphate, copper sulphate, sodium chloride, sodium nitrate, sodium carbonate and ammonium chloride.

Q. Fill in the missing data in the following table:

Name of salt	Formula	Salt obtained from
Name of salt	Formula	Base	Acid
i) Ammonium chloride	$N H_{4} C l$	$N H_{4} O H$	_____
Ii) Sodium chloride	$N a C l$	$N a O H$	_____
iii) Magnesium nitrate	$M g (N O_{3})_{2}$	_____	_____
iv) Potassium sulfate	$K_{2} S O_{4}$	_____	$H_{2} S O_{4}$
v) Calcium nitrate	$C a (N O_{3})_{2}$	$C a (O H)_{2}$	_____

From the following list of substances. choose one substance in each case which matches the description given below :

Ammonium nitrate, calcium hydrogen carbonate, copper carbonate, lead nitrate, potassium nitrate, sodium carbonate, sodium hydrogen carbonate. zinc carbonate.

(a) A nitrate which gives off only oxygen when heated.

(b) A nitrate which on heating decomposes into dinitrogen oxide [nitrous oxide] and steam.

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