9th Class Science Sample Paper Science Olympiad Model Test Paper-14

  • question_answer
    Which one of the following is not the postulates of Dalton's atomic theory?

    A) All the matters are made of very tiny particles called atoms.

    B) Atoms are indivisible particles.

    C) Atoms of different elements have different masses.

    D) Atoms combine together in different ratios.

    E) None of these

    Correct Answer: D


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