Assertion: Detergents with low CMC are more economical to use
Reason: Cleansing action of detergents involves the formation of micelles. These are formed when the concentration of detergents becomes equal to CMC.
Assertion: Detergents with low CMC are more economical to use
Reason: Cleansing action of detergents involves the formation of micelles. These are formed when the concentration of detergents becomes equal to CMC.
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1 Answer
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This is a Assertion and Reason Type Questions as classified in NCERT Exemplar
Ans: Detergents with low CMC are more economical to use as they involve formation of micelle which is used for cleaning of oil and dirt from our cloth. Micelle formation takes place when the concentration of the detergent becomes equal to the CMC so the answer is (i).
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