When metals and their sulphides are simply mixed with dispersion medium?
A
Forms lyophillic colloids
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B
Forms lyophobic colloids
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C
Do not form colloids
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D
Forms GEL
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Solution
The correct option is A Forms lyophillic colloids Lyophillic substances are substances which do not pass much affinity for the dispersion medium and do not readily pass into the sol state. Metal sulphides and oxides are some examples of lyophillic sols