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NTA Abhyas NEET2020ChemistryIonic EquilibriumPractice

The heat of neutralization of NaOH with HCl is 57.3 KJ and with HCN is 12.1 KJ. The heat of ionization of HCN is

Options

  1. A+69.4 KJ
  2. B+45.2 KJ
  3. C-45.2 KJ
  4. D-69.4 KJ

Correct answer

B. +45.2 KJ

Step-by-step solution

'HCN' is a weak acid ∴ 57.3 - 12.1 = 45 . 2 K J

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