1.

Which of the following is incorrect? 1) Catalyst undergoes permanent chemical change 2) Particle size of solute in true solutions is 10^(3-)m 3) Starch solution is a hydrosol 4) Hydrolysis of liquid ester in the presence of mineral acid is an example of heterogeneous catalysis reactions

Answer»

1, 2 and 3
2 and 3
1, 2 and 4
2, 3 and 4

ANSWER :C


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