Detergents are more advantageous than soaps in hard water districts because
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- A On treatment with hard water they either form soluble calcium salts or do not react with calcium ion
- B On treatment with hard water they form soluble calcium salts
- C On treatment with hard water they form sodium salts
- D On treatment with hard water they are converted into soaps
- E On treatment with hard water they form more lather than soaps does
Correct Answer: Option A
Explanation:
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