Which of the following substances does not form a curdy precipitate when it is added to hard water ?
Which of the following substances does not form a curdy precipitate when it is added to hard water ?
A. Potassium salt of fatty acid.
B. Sodium salt of fatty acid.
C. sodium lauryl sulphate.
D. None of the above.
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Correct Answer - C
Sodium lauryl sulphate does not form a curdy precipitate in hard water.
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