Which one of the following is not a buffer so | vedclass

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(D) buffer solution is typically composed of a weak acid and its conjugate base (salt) or a weak base and its conjugate acid (salt).$A$. $H_2S$ is a w

Vedclass · Accepted Answer

$0.05 \ M \ KClO_4 + 0.05 \ M \ HClO_4$

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(D) buffer solution is typically composed of a weak acid and its conjugate base (salt) or a weak base and its conjugate acid (salt).$A$. $H_2S$ is a weak acid and $KHS$ is its salt,so it forms a buffer.$B$. $C_6H_5NH_2$ (aniline) is a weak base and $C_6H_5NH_3Br$ is its salt,so it forms a buffer.$C$. $H_2CO_3$ is a weak acid and $KHCO_3$ is its salt,so it forms a buffer.$D$. $HClO_4$ (perchloric acid) is a strong acid. $A$ mixture of a strong acid and its salt does not act as a buffer solution.Therefore,the correct option is $D$.

Which one of the following is not a buffer solution?

Similar Questions

What is the $pH$ of the solution obtained by mixing $5.076 \ g$ of methyl ammonium nitrate $(CH_3NH_3NO_3)$ into $120 \ mL$ of $0.225 \ M$ methylamine $(CH_3NH_2$; $K_b = 4 \times 10^{-4})$?

In which of the following combinations is buffer action expected?
$(a)$ $NH_4OH + NH_4Cl$
$(b)$ $HCl + NaCl$
$(c)$ $NH_4OH + HCl$ in $2:1$ mole ratio
Select the correct answer using the code given below.

What is the concentration of $[H^+]$ in $mol/L$ in a mixed solution of $0.20 \ M \ CH_3COONa$ and $0.10 \ M \ CH_3COOH$? (Given: $K_a$ of $CH_3COOH = 1.8 \times 10^{-5}$)

When an acid or alkali is mixed with a buffer solution,the $pH$ of the buffer solution:

Which buffer solution out of the following will have $pH > 7$?

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