Which one of the following is NOT a heterogeneous mixture ?

  1. A. Sulphur in carbon disulphide
  2. B. Mixture of sugar and salt crystals
  3. C. Sandy water
  4. D. Sulphur in water

Correct Answer: A. Sulphur in carbon disulphide

Explanation

Sulphur dissolves completely in carbon disulphide to form a true solution, which is a homogeneous mixture.

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