Question

24.Which of the following statements are true for pure substances? (i) Pure substances contain only one kind of particles (ii) Pure substances may be compound or mixtures (iii) Pure substances have the same composition throughout (iv) Pure substances donot have fixed melting and boiling point. Single choice.



(a) (i) and (ii)

(b) (ii) and (iii)

(c) (iii) and (iv)

(d) (i) and (iii)

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Answer 1

Answer:

a(I)and (2) is ur answer

Answer 2

Answer:

b

Explanation:

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