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Question

Aqua regia contains part(s) of concentrated HCl and part(s) of concentrated HNO3.

A
3
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B
2
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C
1
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D
4
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Solution

The correct options are
A 3
C 1
Aqua regia contains 3 parts of concentrated HCl and one part of concentrated HNO3, and is one of the most powerful chemicals ever made.

It is one of the very few substances that are able to dissolve gold, and thus finds usage in the cleaning of gold ornaments.

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