Question: Aqua-regia used by alchemists to separate silver and gold is a mixture of
Options:
A) hydrochloric acid (concentrated) and nitric acid (concentrated)
B) hydrochloric acid (concentrated) and sulphuric acid (concentrated)
C) nitric acid (concentrated) and sulphuric acid (concentrated)
D) hydrochloric acid (dilute) and sulphuric acid (dilute)
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Answer:
Correct Answer: A
BETA
