Which of the following will make a basic buffer solution.

Which of the following will make a basic buffer solution.
  1. 100 mL of $0.1 \mathrm{M} \mathrm{HCl}+.100 \mathrm{~mL}$ of 0.1 M NaOH
  2. 100 mL of $0.1 \mathrm{M} \mathrm{HCl}+100 \mathrm{~mL}$ of 0.1 M NaOH
  3. 50 mL of $0.1 \mathrm{M} \mathrm{KOH}+25 \mathrm{~mL}$ of $0.1 \mathrm{M} \mathrm{CH}_3 \mathrm{COOH}$
  4. 100 mL of $0.1 \mathrm{M} \mathrm{HCl}+200 \mathrm{~mL}$ of $0.1 \mathrm{M} \mathrm{NH}_4 \mathrm{OH}$

Solution

Basic buffer solution is made by mixing a weak base with strong acid.

Asked in: AP EAMCET 2024 (20 May Shift 2)

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