Question

1)Which of the following is NOT true for a substance?
A) All the constituent particles are same in their chemical nature.
B) It consists of a single type of particles.
C)  It is a pure single form of matter.
D) The constituent particles may vary in their chemical nature.
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Answer 1

Answer:d ) The constituent particles may vary in their chemical nature is incorrect. So option d is ur answer

Explanation:

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