9th Class Science Sample Paper Science Olympiad Model Test Paper-16

  • question_answer
    Ravi performs the following experiment in laboratory:
    1. He takes some camphor or ammonium chloride, crush it and put it in a china dish.
    2. He places an inverted funnel over the china dish and put a cotton plug on the stem of the funnel then heat them.
    What does he notice?

    A) Formation of ammonium chloride vapors.

    B) Liquid formation of ammonium chloride.

    C) Ammonium chloride again converts into its solid state.

    D) All of these

    E) None of these

    Correct Answer: A

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