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NTA Abhyas JEE Main2020ChemistryIonic EquilibriumPractice

When 0.01 moles of the following acids are dissolved in 1 L of H 2 O , the [ H + ] will be greatest in: -

Options

  1. AHNO 2 ;pka = 3.0
  2. BH C O O H ; pka = 3.75
  3. CH C N ; pka = 9.4
  4. DC H 3 C O O H ; pka = 4.75

Correct answer

A. HNO 2 ;pka = 3.0

Step-by-step solution

[ H + ] = k a × c k a ↑ pka ↓ [ H + ] ↑

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