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Solution


Q.

Assertion : The path of light passing through the colloidal solution becomes not visible.
Reason : The large particle size does not come its way.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.  
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.  
3 Assertion is true but reason is false.  
4 Assertion is false but reason is true.  

Ans.

(4)

We know that the path of light passing through a colloidal solution becomes visible because light is scattered by relatively larger particles. But the path of light passing through a clear solution is not visible because of small particle size do not come its way. Thus, assertion is false but reason is true.