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When three parts of cone. HCl and one pa...

When three parts of cone. HCl and one part of cone. `HNO_(3)` is mixed, a compound 'X' is formed. The correct option related to 'X' is

A

'X' is known as aqua-regia

B

'X' is used for dissolving gold

C

'X' is used for decomposition of salts of weaker acids

D

both (a) and (b).

Text Solution

Verified by Experts

The correct Answer is:
D
`3HCl_("(conc.)")+HNO_(3"(conc.)")rarrunderset("Aqua regia")underset("(X)")(HNO_(3) cdot 3HCl)`
Aqua regia is used for dissolving noble metals like gold, platinum. HCl decomposes salts of weaker acids e.g., carbonates, hydrogen carbonates, sulphites, etc.
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