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Question

Which of the following systems will show Tyndall effect?

A
Aqueous solution of sodium chloride
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B
Aqueous solution of aluminium hydroxide
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C
Aqueous solution of glucose
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D
Aqueous solution of urea
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Solution

The correct option is C Aqueous solution of aluminium hydroxide
  • The Tyndall effect is the scattering of light as a light beam passes through a colloid.
  • Here, in this question, the Aqueous solution of sodium chloride and an aqueous solution of glucose are true solutions. Whereas, an aqueous solution of urea is a Suspension. An only aqueous solution of aluminium hydroxide is a colloid and hence it shows Tyndall effect.

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