NDA 2026 Chemistry question
Consider the following statements : I. A colloid and a suspension are heterogeneous mixtures. II. Colloids can be separated from the mixture by the process of centrifugation. III. Particles of colloids and suspensions can be seen by naked eye. IV. The aqueous solution of copper sulphate does not show Tyndall effect; however, the mixture of milk and water shows Tyndall effect. Which of the statements given above is/are correct?
Answer: (D)
Solution
Colloids and suspensions are heterogeneous mixtures, and colloidal particles can be separated by centrifugation. The particles of a suspension are visible to the naked eye but
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