The right option for the statement "Tyndall effect is exhibited by", is :
NaCl solution
Glucose solution
Starch solution
Urea solution
Tyndall effect is exhibited by colloidal solution only. Among the given options, Urea, NaCl and Glucose solutions are true solutions, so cannot show Tyndall effect. Starch solution is a colloidal solution therefore can show Tyndall effect.
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