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Sodium lauryl sulphate (SLS) is a surface active agent, which is adsorbed on water surface. The number of molecules of SLS that can be adsorbed on the surface of a spherical water droplet of diameter 3.5 mm is (effective area of one molecule of SLS =4.18 ~nm ^2 )

Options

  1. A9.20 10¹²
  2. B9.20 10¹⁸
  3. C1.15 10¹²
  4. D3.68 10¹³

Correct answer

A. 9.20 10¹²

Step-by-step solution

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