A) Catalyst undergoes permanent chemical change
B) Particle size of solute in true solution is \[{{10}^{-3}}\text{m}\]
C) Starch solution is a hydrosol
D) Hydrolysis of liquid ester in the presence of mineral acid is an example of heterogenenous catalysis reactions
Correct Answer: C
Solution :
Starch solution is a hydrosol as it form colloidal solution with water.
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