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Which of the following statement is incorrect?
(a) the particles of matter are very, very small
(b) the particles of matter attract one another
(c) the particles of some of the matter are moving constantly
(d) the particles of all the matter have spaces between them
Correct answer: (c) the particles of some of the matter are moving constantly
Explanation: The statement that the particles of some forms of matter move constantly is incorrect because the particles of matter of all three states– solid, liquid and gas –are moving constantly. In solids, the particles are fixed at their positions but they vibrate constantly.
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