Which of the following componds is insoluble in water?
Correct answer: A. Calcium salt of stearic acid
- A. Calcium salt of stearic acid
- B. Calcium salt of heptadecanesulphonic acid
- C. Magnesium salt of laurylsulphonic acid
- D. Potassium salt of palmitic acid
Explanation
Calcium stearate which is also known as soap scum is insoluble in water. Due to the formation of Calcium and magnesium stearate in hard water, soap does not dissolve in hard water.
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