JEE Main 2022 Chemistry question
Not in JEE Main or NEET syllabus
Given below are two statements: one is labelled as Assertion A and other is labelled as Reason R. Assertion A : Finest gold is red in colour, as the size of the particles increases, it appears purple then blue and finally gold. Reason R : The colour of the colloidal solution depends on the wavelength of light scattered by the dispersed particles. In the light of the above statements, choose the most appropriate answer from the options given below.
Answer: (A)
Solution
Finest gold sol is red in colour; as the size of the particles increases it appears purple, then blue and finally golden. The colour of a colloidal solution
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