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Question

Which of the following acid is also known as oil of vitriol?


  1. Nitric acid

  2. Carbonic acid

  3. Hydrochloric acid

  4. Sulphuric acid


Solution

The correct option is D

Sulphuric acid


Sulphuric acid is rightly called the ‘King of Chemicals’ because there is no other manufactured compound which is used by such a large number of key industries.

In the later Middle Ages, it was obtained as an oily viscous liquid by heating crystals of green vitriol, and was, therefore, known by the name of oil of vitriol.

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