Which of the following is not a colloid?

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(A) colloid is a heterogeneous system in which one substance is dispersed as very fine particles in another substance. $A$ Chlorophyll is a complex mo

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Chlorophyll

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(A) colloid is a heterogeneous system in which one substance is dispersed as very fine particles in another substance. $A$ Chlorophyll is a complex molecule (a coordination compound of magnesium) and not a colloidal system. $B$ Egg white is a sol (colloid of solid in liquid). $C$ Ruby glass is a solid sol (colloid of solid in solid). $D$ Milk is an emulsion (colloid of liquid in liquid). Therefore,chlorophyll is not a colloid.

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