MCQ
Which of the following solutions can act as buffer
- A$0.1$ molar aq. $NaCl$
- B$0.1$ molar aq. $C{H_3}COOH + 0.1$ molar $NaOH$
- ✓$0.1$ molar aq. ammonium acetate
- DNone of the above
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$\mathop {Salt\,\,'A'}\limits_{(Colourless)} \,\,\xrightarrow{{Cu}}$ Blue solution
$\mathop {Salt\,\,'A'}\limits_{(Colourless)} \,\,\xrightarrow[{(aq)}]{{HCl}}$ White ppt
$\mathop {Salt\,\,'A'}\limits_{(Colourless)} \,\,\xrightarrow[{{H_2}S{O_4}}]{{Conc.}}$ Brown fumes
