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Question
Give one example each of lyophobic sol and lyophilic sol.
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Solution
(i) Lyophobic sols: Gum, gelatin, starch, proteins, rubber etc. (any one)
(ii) Lyophilic sols: Solutions of metals such as silver and gold, iron (III) hydroxide solution (Fe(OH)3), arsenic sulphide (As2S3) solution etc. (any one)
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