MCQ
Buffer Solution is prepared by mixing _________________.
  • A
    Weak acid and its salt of strong base.
  • B
    Strong acid + its salt of strong base.
  • C
    Weak acid + its salt of weak base.
  • D
    Strong base + its salts of strong acid.

Answer

  1. Weak acid and its salt of strong base.

Explanation:

A solution that resists change in pH value upon addition of a small amount of strong acid or base (less than 1 %) or when the solution is diluted is called buffer solution.

An acidic buffer solution consists of a solution of a weak acid and its salt with a strong base. while basic buffer solution consists of a mixture of a weak base and its salt with strong acid.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The $pH $ value of $1.0 \times {10^{ - 8}}\,M\,HCl$ solution is less than $8$ because
In the manufacture of ammonia by Haber's process, ${N_{2(g)}} + 3{H_2}$ $\rightleftharpoons$ $2N{H_{3(g)}} + 92.3\,kJ$,which of the following conditions is unfavourable
In which of the following arrangements the order is $NOT$ according to the property indicated against it
Equal volumes of monoatomic and diatomic gases at same initial temperature and pressure are mixed. The ratio of specific heats of the mixture $({C_p}/{C_v})$ will be
Which of the following does not give ppt with $CrO _{4}^{-2}$
If oxalic acid is treated with conc. $H_2SO_4$ , then gases formed will be
When $Cu$ or $Zn$ added to $CuSO_4$ we get $Cu$ .It is due to
Optical isomerism arises due to the presence of
The stepwise formation of $\left[ Cu \left( NH _{3}\right)_{4}\right]^{2+}$ is given below

$Cu ^{2+}+ NH _{3} \stackrel{ K _{1}}{\rightleftharpoons}\left[ Cu \left( NH _{3}\right)\right]^{2+}$

$\left[ Cu \left( NH _{3}\right)\right]^{2+}+ NH _{3} \stackrel{ K _{2}}{\rightleftharpoons}\left[ Cu \left( NH _{3}\right)_{2}\right]^{2+}$

$\left[ Cu \left( NH _{3}\right)_{2}\right]^{2+}+ NH _{3} \stackrel{ K _{3}}{\rightleftharpoons}\left[ Cu \left( NH _{3}\right)_{3}\right]^{2+}$

$\left[ Cu \left( NH _{3}\right)_{3}\right]^{2+}+ NH _{3} \stackrel{ K _{4}}{\rightleftharpoons}\left[ Cu \left( NH _{3}\right)_{4}\right]^{2+}$

The value of stability constants $K _{1}, K _{2}, K _{3}$ and $K _{4}$ are $10^{4}, 1.58 \times 10^{3}, 5 \times 10^{2}$ and $10^{2}$ respectively. The overall equilibrium constants for dissociation of $\left[ Cu \left( NH _{3}\right)_{4}\right]^{2+}$ is $x \times 10^{-12}$ The value of $x$ is ...............

(Rounded off to the nearest integer)

Based upon an understanding of product stability, predict the product formed when  the following dianion reacts with one equivalent of acid