Question

Which of the following illustrations represents a pure substance? Why?

Answer 1

where are the following illustrations which represents a pure substance

Answer 2

$Question$

Which of the following illustrations represents a pure substance? Why?

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$Answer$

$\huge \red {Option \: C}$

$\bf \: Explanation:$

A pure substance contains only the ONE type of atom or molecule. Pure substances can be elements or compounds.

A depicts at least two types of substance, a diatomic molecule, $x^2$ , and a heteronuclear diatomic, AX ;B depicts single atoms, and another heteronuclear diatomic; D

depicts the same as B .

For C , however, only the one type of heteronuclear diatomic is present. Reasonable examples would include HX or CO.

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