Which of the following will form a basic buff | vedclass

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(D) basic buffer solution is formed by mixing a weak base with its salt of a strong acid,or by the partial neutralization of a weak base with a strong

Vedclass · Accepted Answer

$100 \ mL$ of $0.1 \ M$ $HCl + 200 \ mL$ of $0.1 \ M$ $NH_4OH$

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(D) basic buffer solution is formed by mixing a weak base with its salt of a strong acid,or by the partial neutralization of a weak base with a strong acid.In option $D$,we have $100 \ mL$ of $0.1 \ M$ $HCl$ $(10 \ mmol)$ and $200 \ mL$ of $0.1 \ M$ $NH_4OH$ $(20 \ mmol)$.The reaction is: $NH_4OH + HCl \rightarrow NH_4Cl + H_2O$.After the reaction,$10 \ mmol$ of $NH_4OH$ (weak base) remains,and $10 \ mmol$ of $NH_4Cl$ (salt of weak base and strong acid) is formed.This mixture of a weak base and its salt acts as a basic buffer.

Which of the following will form a basic buffer solution?

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