Question
Science Question on What are the Types of Pure Substances?
Identify the solutions among the following mixtures.
A
Soil
B
Sea water
C
Air
D
Coal
E
Soda water
Answer
Sea water
Explanation
Solution
Sea water, air and soda water: Sea water is a homogeneous mixture of various minerals and salts in water. Air is a homogeneous mixture of nitrogen, oxygen and several other gases. Soda water is a homogeneous mixture of carbon dioxide gas dissolved in water.
Coal, Soil: Heterogeneous solution.Coal and soil may seem as a single phase, but due to their inconsistent composition, they cannot be categorized as solutions.
Thus, the correct options are** (b), (c), and(e).**