Multiple choice

Laundry soap is

  1. a mixture of sodium salt of higher fatty acids of natural origin

  2. sodium carbonate

  3. sodium sulphate

  4. a mixture of sodium salts of synthetic sulphonic acids
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A Correct answer
Explanation

Laundry soap is chemically the sodium or potassium salt of long-chain fatty acids, typically produced via saponification of fats and oils.

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