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Acids

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Question

The chemical name of "Oil of Vitriol" is:

A

nitric acid

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B

hydrochloric acid

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C

potassium hydroxide

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D

sulphuric acid

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Solution

The correct option is A sulphuric acid
Sulphuric acid was first discovered by the liquefaction of green vitriol ( $F e {S O}_{4} .7 H_{2} O$ ). Hence, it is called the oil of vitriol.

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Why is sulphuric acid known as king of chemicals and oil of vitriol?

Q. Assertion :Sulphuric acid was called 'oil of vitriol'. Reason: Medieval alchemists prepared by roasting green vitriol iron sulphate in iron retort and known as oil of vitriol.

Q. Which acid was initially called 'oil of vitriol'?

Q. Which of the following acids is known as the oil of vitriol?

Q. Give reasons for the following:
(a) Sulphuric acid forms two types of salts with NaOH.
(b) Red-brown vapours are produced when concentrated sulphuric acid is poured on it
(c) A piece of wood becomes black when concentrated sulphuric acid is poured on it.
(d) Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.
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