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JEE 2020 Chemistry: Surface Chemistry Quiz-2(10.07.2019)

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Question 1

A substance forms Zwitter ion. It can have functional groups:

Question 2

Gold numbers of some colloids are: Gelatin: 0.005 - 0.01, Gum Arabic: 0.15 - 0.25; Oleate: 0.04 - 1.0; Starch: 15 - 25. Which among these is a better protective colloid?

Question 3

The volume of a colloidal particle, Vc as compared to the volume of a solute particle in a true solution VS; could be

Question 4

Gold numbers of protective colloids A, B, C and D are 0.50, 0.01, 0.10 and 0.005 respectively. The correct order of their protective powers is

Question 5

Among the following, correct statement is:

Question 6

The coagulating power of electrolytes having ions Na+, Al3+ and Ba2+ for arsenic sulphide sol increases in the order:

Question 7

Which property of colloids is not dependent on the charge on colloidal particles ?

Question 8

Which one of the following characteristics is associated with adsorption?

Question 9

Which one of the following statements is incorrect about enzyme catalysis?

Question 10

The addition of a catalyst during a chemical reaction alters which of the following quantities?
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Jul 10JEE & BITSAT