InterviewSolution
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Three students were asked to add water to chalk powder, milk & glucose. They were asked in which sample there is suspension when added to water? * chalk powder milk all of these glucose |
Answer» ❒ According to question,
[SINCE, Chalk powder is insoluble in water, it is a heterogeneous mixture. They spread throughout the LIQUID, but after sometime they tend to settle at the bottom. Due, to this the above mixture is a Suspension.] ❒ EXPLANATION:Since, we are GIVEN three mixtures of some components with water, we have to judge whether they are suspension/colloid/solution. Based on observations, here are results.
As already explained, Chalk is insoluble in water. They create a suspension of fine chalk particles in water. After sometime, they settle at the bottom. Also, the particles can be seen with naked eyes.
It is a colloid since, the particles do not settle at the bottom. Also, the particles are very small to see with naked eyes. They scatters light, and the path of light is visible.
It is a Solution, because Glucose is soluble in water. It forms a homogenous mixture. The size of particles is extremely small. The particles could pass through filter paper. The particles do not separate on keeping undisturbed. It doesn't scatter light ❒ Explore more!
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