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Question

Which of the following is an example of a heterogeneous mixture?

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

Oil dissolved in water

The correct answer is option 1 I.e. Oil dissolved in water.

The example of oil dissolving in water is actually a homogeneous mixture, not a heterogeneous one. This is because, in such a mixture, the oil and water typically form separate layers rather than maintaining distinct, visible components.

For a mixture to be heterogeneous, the components should be clearly distinguishable. For instance, a sand and water mixture, or salad, are classic examples of heterogeneous mixtures.

 

 

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