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Question

Which of the following is an example of heterogeneous solution?

This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is

Mixture of oil and water

The correct answer is option 3 I.e. Mixture of oil and water.

Mixture of oil and water is an example of a heterogeneous solution.

 A heterogeneous mixture has distinct, visibly separate components, and the composition is not uniform throughout. Oil and water do not mix uniformly—they form separate layers, making the mixture heterogeneous.

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