Question

What is aqua regia? How it is helpful in dissolving noble metals?
(Standard 10 question
Chemistry .)
please try answering the second part of answer.​

Answer 1

Answer:

Aqua regia is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.

Currently, aqua regia, a mixture of concentrated nitric acid and hydrochloric acid, usually in a molar ratio of 1:3, is used to dissolve noble metals. This allows these relatively rare elements to be retrieved from worn-out and scrapped catalytic converters and other equipment.

Answer 2

Answer:

aqua regia is a mixture of concentrated hcl and conct. nitric acid in ration 3:1

Explanation:

it dissolves gold,platinum so called royal liquid