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Indian Navy AA (Artificer Apprentice) Carbon and its Compounds — practice questions

Explore 2 free Carbon and its Compounds questions in Indian Navy AA (Artificer Apprentice) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Carbon and its Compounds questions and exercises with answers

Showing questions 1–2 of 2.

Worked practice questions

The cleansing action of soap is due to the formation of spherical aggregates called:

  1. micelles
  2. isomers
  3. esters
  4. crystals
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Correct answer: A. micelles

Soap molecules cluster into micelles, trapping oily dirt at the centre.

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A soap molecule cleans greasy clothes mainly because:

  1. bleaches grease using oxygen
  2. dissolves grease completely
  3. kills the grease chemically
  4. tail in grease, head in water
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Correct answer: D. tail in grease, head in water

The hydrophobic tail buries into grease the hydrophilic head pokes into water. The arrangement forms micelles that suspend dirt in water for rinsing.

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