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7th Class Science Sample Paper Science Olympiad Model Test Paper-17

  • question_answer
    Which one of the following options contains two strong acids and one weak acid?

    A) Hydrochloric acid, nitric acid, acetic acid

    B) Formic acid, carbonic acid, citric acid

    C) Tartaric acid, acetic acid, nitric acid

    D) Hydrochloric acid, sulphuric acid, nitric acid

    E) None of these

    Correct Answer: A

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