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Asked: 2025-01-31T09:18:48+00:00 In:

Which of the following is not a colloid?

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Poll Results

0% (a) Starch in water
62.5%(b) Sulphur in CS₂ ( 5 voters )
12.5%(c) Soap solution ( 1 voter )
25% (d) Petrol in CS₂ ( 2 voters )
Based On 8 Votes

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The correct answer is (b) Sulphur in CS₂.
Sulfur dissolves completely in carbon disulfide (CS₂) to form a true solution, not a colloid. In contrast, starch in water, soap solution, and petrol in CS₂ form colloidal dispersions.
Class 9th Science NCERT MCQ Questions
NCERT Books MCQ Questions Session 2024-2025.

class 9thcolloidmcqscience
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    1 Answer

    1. (b) Sulphur forms a true solution in CS2. Others form colloidal solution.

      https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/

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