AP EAMCET · Chemistry · Ionic Equilibrium
Which among the following pair constitute a buffer?
- A \(\mathrm{LiOH}\) and \(\mathrm{LiCl}\)
- B \(\mathrm{HNO}_3\) and \(\mathrm{NH}_4 \mathrm{NO}_3\)
- C \(\mathrm{HNO}_2\) and \(\mathrm{NaNO}_2\)
- D \(\mathrm{HBr}\) and \(\mathrm{KBr}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{HNO}_2\) and \(\mathrm{NaNO}_2\)
Step-by-step Solution
Detailed explanation
Buffer solution consists of mixture of weak acids and their salts or weak base and their salts. \(\mathrm{LiOH}\) is a strong base whereas \(\mathrm{HNO}_3\) and \(\mathrm{HBr}\) are strong acids. \(\mathrm{HNO}_2\) is a weak acid and \(\mathrm{NaNO}_2\) is a salt formed by…
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