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For a strong electrolyte, a plot of molar conductivity against (concentration) ( ^ 1 / 2 ) is a straight line, with a negative slope, the correct unit for the slope is

Options

  1. A( S cm ^2 ~mol ^ -3 / 2 ~L ^ -1 / 2 )
  2. B( S cm ^2 ~mol ^ -3 / 2 ~L ^ 1 / 2 )
  3. C( S cm ^2 ~mol ^ -3 / 2 ~L )
  4. D( S cm ^2 ~mol ⁻¹ ~L ^ 1 / 2 )

Correct answer

B. ( S cm ^2 ~mol ^ -3 / 2 ~L ^ 1 / 2 )

Step-by-step solution

_ m = _ m ^ - A C Units of A C = S cm ^2 ~mole ⁻¹ Uits of A = S cm ^2 ~mole ^ -3 / 2 ~L ^ 1 / 2

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