Question

3. Aqua regia is a mixture of
(a) I part conc. HCI + 3 parts conc. HNO
(b) 3 parts conc. HCI + 1 part conc. HNO,
(c) equal parts of conc. HCI and conc. HNO
(d) conc. HCI and conc. HNO, mixed in any ratio​

Answer 1

answer is b

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