Question

24. Which of the following is a true statement regarding mixtures?

• A. They have variable composition.
• B. Mixtures are always homogeneous.
• C. Mixtures are always heterogeneous.
• D. None of the above.

Answer 1

The correct option is A

They have variable composition.

Explanation:

(A) Mixture have variable composition.

• A mixture is a substance that has variable composition. A mixture is consist of molecules or atoms of differing types.
• Mixtures can be homogeneous and heterogeneous.
• In homogeneous mixtures the composition is same throughout the mixture. For e.g. air is a homogeneous mixture of different gases.
• In heterogeneous mixtures the composition is not the same throughout the mixture. For e.g. sand and water, oil and water etc.

Hence, option (A) is the correct answer.