Question

Identify the solutions among the following mixtures.

• A. Soil
• B. Seawater
• C. Air
• D. Coal
• E. Soda water

Answer 1

Answer: (B), (C), (E)

Soda water

Explanation for correct options:

Option (B) Seawater

• The solution is a homogeneous mixture(the mixture is uniform throughout and one part cannot be distinguished from the other part) of two or more components with a size of less than $1\mathrm{nm}$.
• The solvent is the substance in which a solute dissolves to form a homogeneous mixture.
• The solute is the substance that dissolves in a solvent to form a homogeneous mixture.
• Seawater is the homogeneous solution of various minerals and salts in water.

Option (C) Air

• Air is a homogeneous mixture of Carbon dioxide, Oxygen, Nitrogen, and many other gases.

Option (E) Soda water

• Soda water is a homogeneous solution of Carbon dioxide gas dissolved in water.

Explanation for incorrect options:

Option A Soil:

• Soil is a mixture of various minerals and components at different proportions.
• Hence, Soil is not a homogenous mixture.

Option D coal

• Coal is a mixture of various components such as Carbon, Hydrogen…etc at different proportions.
• Hence, Coal is not a homogenous mixture.

Therefore, option (B), Option (C), Option (E) are the correct answers.