Given below are two statements : one is labeled as Assertion A and the other is labeled as Reason R.
Assertion A: Finest gold is red in colour, as the size of the particles increase, 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.
Given below are two statements : one is labeled as Assertion A and the other is labeled as Reason R.
Assertion A: Finest gold is red in colour, as the size of the particles increase, 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.
Option 1 -
Both A and R are true R is the correct explanation of A.
Option 2 -
Both A and R are true but R is NOT the correct explanation of A.
Option 3 -
A is true but R is true.
Option 4 -
A is false but R is true.
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1 Answer
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Correct Option - 1
Detailed Solution:the finest gold sol is red in colour, as the size of particle increases, it appears purple then blue and finally gold. The colour of colloidal solution depends on the wavelength of light scattered by the dispersed particles. The wavelength of light further depends on size and nature of the particles. Hence, both assertion and reason are true and reason is the correct explanation of assertion.
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