7th Class Science Sample Paper Science Olympiad Model Test Paper-11

  • question_answer
    Peter: Aqua regia consists of 3 parts of hydrochloric acid and 1 part of nitric acid.
    Albert: Aqua regia is used to dissolve noble metals such as gold and platinum.
    Who is correct?

    A) Peter

    B) Albert

    C) Both are correct

    D) Both are incorrect

    E) None of these

    Correct Answer: C


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