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UPSC Chemistry States of Matter / पदार्थ की अवस्थाएँ - गैस एवं द्रव Question Bank Chemistry, Matter and its Composition

  • question_answer
          Aqua-regia used by alchemists to separate silver and gold is a mixture of                       [CDS]

    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)

    Correct Answer: A

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