Of the following which is NOT a pure substance
A) gold
B) sugar
C) water
D) air
E) methane

Name: Of the following which is NOT a pure substance A) gold B) sugar C) water D) air E) methane
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Question

Quizplus · Accepted Answer

The other choices are all pure substances. Gold, sugar, water, and methane are all elements or compounds in their pure form. Air, on the other hand, is a mixture of gases and therefore not a pure substance.

Of the Following Which Is NOT a Pure Substance