Q26 of 38 Page 64

You are provided with soda water, milk and muddy water. How can you differentiate between them in terms of (i) Homogeneity (ii) Filtration (iii) Tyndall effect?

(i) Homogeneity: Soda water is a solution and as such it can be differentiated based on the property of homogeneity.

(ii) Filtration: Muddy water is a heterogeneous mixture and can be separated by filtration


iii) Tyndall effect: Milk is a colloid and exhibits the property of Tyndall effect


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10ml of H2SO4 is dissolved in 90 ml of water. Calculate mass by volume percentage of solution.

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How are emulsions different from Gels? Give one example of each.

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Which separation techniques will you apply for the separation of the following?

(a) The different pigments from an extract of flower petals


(b) Butter from curd


(c) Oil from water


(d) Tea leaves from tea


(e) Iron pins from sand


(f) Wheat grains from husk


(g) Fine mud particles floating in water.

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Give any one point of difference between true solution, colloidal solution and suspension.