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MHT CET Medical202622 April 2026Morning ShiftChemistryIonic EquilibriumActual

Find the p K _b of the weak base BOH, if its K _b is 1 10⁻⁵ ?

Options

  1. A-5
  2. B5
  3. C10
  4. D10⁻⁵

Correct answer

B. 5

Step-by-step solution

The relationship between pK _b and K _b is given by: pK _b = - ₁₀( K _b) Substituting the given value K _b = 1 10⁻⁵ : pK _b = - ₁₀(1 10⁻⁵) pK _b = -(-5) pK _b = 5 Answer: 5

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