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Question

Polyethylene glycols are used in the preparation of which of the following cleansing agents?


A

Soaps

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B

Anionic detergents

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C

Cationic detergents

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D

Non-ionic detergents

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Solution

The correct option is D

Non-ionic detergents


Explanation of correct option.

Option (D) Non-ionic detergents

  • Polyethylene glycols (PEG) are used in the preparation of non-ionic detergents since they contain an OH group, which is reactive and forms non-ionic detergents.
  • Non-ionic detergents are based on polyoxyethylene or glycoside.
  • The non-ionic detergent detergents do not contain any ions in their constitution and are formed by the reaction of stearic acid with polyethylene glycol.

Explanation of incorrect options:

Option (A) Soaps

  • Soaps are ionic compounds.
  • Polyethylene glycols are used in the preparation of non-ionic compounds.
  • Hence option (A) is correct.

Option (B) Anionic detergents

  • Polyethylene glycols are used in the preparation of non-ionic compounds.
  • Since Anionic detergents have negative charges.
  • Hence option (B) is correct.

Option (C) Giving out water.

  • Polyethylene glycols are used in the preparation of non-ionic compounds.
  • Since cationic detergents have positive charges.
  • Hence option (C) is correct.

Therefore, option (D) is the correct answer.


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