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JEE Main · 2016 · 03 Apr 2016 · Offline · Chemistry in Everyday Life

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Which of the following is an anionic detergent ?
  1. (A)Sodium lauryl sulphate✓ Correct
  2. (B)Cetyltrimethyl ammonium bromide
  3. (C)Glyceryl oleate
  4. (D)Sodium stearate

Answer: (A)

Solution

An anionic detergent carries its charge on a negative head group. Sodium lauryl sulphate has a sulphate head, , which is negative, so it is anionic. Cetyltrimethylammonium bromide is cationic with a positive head, glyceryl oleate is non-ionic, and sodium stearate is a soap rather than a synthetic detergent. The anionic detergent is sodium lauryl sulphate.

JEE Main · 2016 · 03 Apr 2016 · Offline · Single correct option

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