Question

Which one of the following is not a pure substance

a) Diamond c) ammonium chloride

b) Brass d) sulphur dioxide.​

Answer 1

c) ammonium chloride

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Answer 2

$\huge\underline\mathtt\color{pink}Question$

Which one of the following is not a pure substance .

(a) Diamond

(b) Ammonium chloride

(c) Brass

(d) Sulphur dioxide.

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(c) Brass.

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●Brass is a mixture of elements of Copper and Zinc.

● Brass is not a pure substance because it

doesn't have a definite composition.

●Brass is an alloy of copper and Zinc with

the proportion of these metals and varied

to it with having different properties.