Which one of the following is not a buffer solution?

Question

Which one of the following is not a buffer solution? (A) 0.8 M H 2 S +0.8 M KHS (B) 2 M C 6 H 5 NH 2+2 M C 6 H 5 NH 3 + Br - (C) 3 M H 2 CO 3+3 M KHCO 3 (D) 0.05 M KClO 4+0.05 M HClO 4

Tardigrade Admin · Accepted Answer

Buffer solutions can be obtained by mixing a weak acid with its salt formed with a strong base or by mixing a weak base with its salt formed with a strong acid.

As

H Cl O_{4}

is a strong acid, therefore equimolar mixture of

H Cl O_{4}

and its salt

K Cl O_{4}

is not a buffer solution.

Q. Which one of the following is not a buffer solution?

$0.8 M H_{2} S + 0.8 M KH S$

$2 M C_{6} H_{5} N H_{2} + 2 M C_{6} H_{5} N H_{3}^{+} B r^{-}$

$3 M H_{2} C O_{3} + 3 M KH C O_{3}$

$0.05 M K Cl O_{4} + 0.05 M H Cl O_{4}$

Buffer solutions can be obtained by mixing a weak acid with its salt formed with a strong base or by mixing a weak base with its salt formed with a strong acid.

As $H Cl O_{4}$ is a strong acid, therefore equimolar mixture of $H Cl O_{4}$ and its salt $K Cl O_{4}$ is not a buffer solution.

Q. Which one of the following is not a buffer solution?

0.8MH2​S+0.8MKHS

2MC6​H5​NH2​+2MC6​H5​NH3​+Br−

3MH2​CO3​+3MKHCO3​

0.05MKClO4​+0.05MHClO4​

Buffer solutions can be obtained by mixing a weak acid with its salt formed with a strong base or by mixing a weak base with its salt formed with a strong acid. As HClO4​ is a strong acid, therefore equimolar mixture of HClO4​ and its salt KClO4​ is not a buffer solution.

$0.8 M H_{2} S + 0.8 M KH S$

$2 M C_{6} H_{5} N H_{2} + 2 M C_{6} H_{5} N H_{3}^{+} B r^{-}$

$3 M H_{2} C O_{3} + 3 M KH C O_{3}$

$0.05 M K Cl O_{4} + 0.05 M H Cl O_{4}$

Buffer solutions can be obtained by mixing a weak acid with its salt formed with a strong base or by mixing a weak base with its salt formed with a strong acid.

As $H Cl O_{4}$ is a strong acid, therefore equimolar mixture of $H Cl O_{4}$ and its salt $K Cl O_{4}$ is not a buffer solution.