Question: Which of the following will form a buffer solution when added to 100 mL of 1M NaOH? I. 0.1 mol HCl II. 0.2 mol HF

Which of the following will form a buffer solution when added to 100 mL of 1M NaOH?

I. 0.1 mol HCl

II. 0.2 mol HF

III. 0.1 mol HNO2

IV. 0.3 mol CH3COOH

V. 0.2 mol NH3

  1. III only

  2. II,III,&IV

  3. V only

  4. II&IV

  5. I, II &III

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