Beaker -A- has chalk powder mixed with water and beaker -B- has protein dissolved in water-i Which solution shows Brownian movement-ii Identify the solution that has the particle size greater than 2000-A-iii Which beaker contains colloidal solution-iv Mention the size of the particle present in beaker B-v Say whether colloidal solution in homogeneous or heterogeneous

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Byju's Answer

Standard XII

Chemistry

Brownian Motion

Beaker 'A' ...

Question

Beaker $^{'} A^{'}$ has chalk powder mixed with water and beaker $^{'} B^{'}$ has protein dissolved in water.
i) Which solution shows Brownian movement?
ii) Identify the solution that has the particle size greater than $2000 \circ A$ .
iii) Which beaker contains colloidal solution?
iv) Mention the size of the particle present in beaker $B$ .
v) Say whether colloidal solution in homogeneous or heterogeneous

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Solution

Beaker A has chalk powder not completely dissolved in water.
Beaker B has protein in water which is a colloidal solution.
(i) The Brownian movement will be shown by colloidal solution in Beaker B.
(ii) Particle size is greater than $2000 o A$ for solution having less soluble solute. This is applicable for Beaker A.
(iii) Protein in water i.e. Beaker B has a colloidal solution.
(iv) Beaker B has a particle size in colloidal range i.e. $1$ to $100 n m$ .
(v) A colloidal solution is heterogeneous as the components do not get completely mixed, and that such a solution is not transparent.

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