Question

Explain the following giving examples.
(a) saturated solution
(b) pure substance
(c) colloid
(d) suspension
Classify each of the following as a homogeneous or
heterogeneous mixture.
soda water, wood, air, soil, vinegar, filtered tea.
How would you confirm that a colourless liquid given to you is
pure water?
Which of the following materials fall in the category of a "pure
substance?
(a) Ice
(b) MHk
(c) Iron
(d) Hydrochloric acid
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Answer 1

Answer:

hydrochloric acid in the category of a "pure"

Answer 2

Among these substances ice, iron, mercury and tree are pure substances.