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Question

Aqua Regia or Royal liquid is a mixture of


A

1 part of Conc.HNO3 and 3 parts of Conc. HCl

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B

1 part of dil.HNO3 and 3 parts of dil. HCl

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C

3 part of Conc.HNO3 and 1 parts of Conc.HCl

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D

3 part of dil.HNO3 and 1 parts of dil. HCl

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Solution

The correct option is A

1 part of Conc.HNO3 and 3 parts of Conc. HCl


Aqua regia is also known as 'Royal liquid' is a mixture of concentrated nitric acid(HNO3) and concentrated hydrochloric acid (HCl) taken in the ratio 1:3. It is a corrosive, fuming yellow or red liquid, used by jewellers to dissolves noble metals such as gold, platinum, etc.

So the composition of aqua regia or royal liquid is 1 part of Conc.HNO3 and 3 part of Conc. HCl.


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