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NEET2001ChemistryIonic EquilibriumActual

The pH of aqueous solution of ammonium formate is ( p K_a . of HCOOH =3.8 and p K_b of . NH ₃=4.8 )

Options

  1. A7
  2. B6.0
  3. C6.5
  4. D8.9

Correct answer

C. 6.5

Step-by-step solution

For a salt of weak acid and weak base, its pH =7+ 1 2 p K_a- 1 2 p K_b =7+ 1 2 3.8- 1 2 4.8=6.5

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