JEE Main Chemistry question

Chemistry Surface Chemistry JEE Main

Not in JEE Main or NEET syllabus

The gold numbers of some colloidal solutions are given below:

Colloidal solution A: 0.01, Colloidal solution B: 2.5, Colloidal solution C: 20

The protective nature of these colloidal solutions follows the order

(A)C > B > A
(B)A > B > CCorrect
(C)A = B = C
(D)B > A > C

Answer: (B)

Solution

The protective power of a colloid is inversely proportional to its gold number — a smaller gold number means a smaller amount of colloid is needed to

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Question ID VK-144748