Assertion(A): Synthetic detergents can lather well in hard water. Reason (R): Synthetic detergents form soluble calcium and magnesium salts with hard water.
✓ Correct answer: a) Both A and R are individually true and R is the correct explanation of A
ExplanationAssertion (A) is true: Synthetic detergents, unlike soap, work efficiently in hard water because they do not form insoluble scum with calcium and magnesium ions, which are present in hard water.This enables better lathering.Reason (R) is true: Synthetic detergents are mainly non-ionic or anionic, allowing them to form soluble complexes with calcium and magnesium ions, preventing scum formation.Unlike soap, which forms insoluble salts, these detergents continue to lather in hard water.Reason (R) correctly explains Assertion (A) because synthetic detergents form soluble complexes with calcium and magnesium, preventing scum and aiding lathering in hard water.Direction: The following item consists of two statements.One labeled as the ‘Assertion (A)’ and the other as “Reason (R)”.You have to answer this item using the code given below: 328
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