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Assertion: A quious gold colloidal solut...

Assertion: A quious gold colloidal solution is red in colour.
Reason: The colour arises due to scattering of light by colloidal gold particles.

A

If both assertion and reason are ture, and reason is the trure explanation of the assertion.

B

If both assertion and reason are true, but reason is not the true explanation of the assertion.

C

If assertion is true, but reason is false.

D

If both assertion and reason false.

Text Solution

Verified by Experts

The correct Answer is:
A
The colur is due to scattering . It depends upon to size of particles. Finest gold sol has red colour. At the size of the particles increases, it becomes purple than blue and finally golden yellow.
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