Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 38

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Solubility of ${As}_{2} S_{3}$ in $10^{- 3} {MNa}_{2} S$ solution, assuming no hydrolysis of cationic or anionic part is:
$(K_{sp} {As}_{2} S_{3} = 16 \times 10^{- 27})$ .

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Important Questions on Equilibrium

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 39

The solubility product of

{Ag}_{2} {CO}_{3}

and

{FeCO}_{3}

in water at

25 ° C

are

4 \times 10^{- 12}

and

2.5 \times 10^{- 11}

, respectively. If

S_{1}

and

S_{2}

are their solubilities in water, respectively when dissolved separately, then

S_{1} / S_{2}

is:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 40

How many millimoles, of

NaOH

should be added to

1 L

of

0.1 M {FeCl}_{3}

, solution to just start the precipitation of

Fe (OH)_{3} ? K_{sp} [Fe (OH)_{3}] = 8 \times 10^{- 13}

.

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 41

$K_{sp} (SnS) = 10^{- 25}$
$K_{SP} (ZnS) = 1.6 \times 10^{- 24}$

To a solution containing $0.01 {MSn}^{2 +}$ and $0.2 {MZn}^{2 +}, S^{2 -}$ is added gradually. Without changing the volume of solution. Which of the following is correct?

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 42

The solubility product of

AgCl

is

1.8 \times 10^{- 10}

. Precipitation of

AgCl

will occur only when equal volumes of solutions of:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 44

For the reaction

H_{2} (g) + I_{2} (g) ⇌ 2 HI (g)

, the equilibrium constant

(K_{p})

changes with

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 45

In an aqueous solution, of volume

500 mL

, when the reaction

2 {Ag}^{+} + Cu ⇌ {Cu}^{2 +} + 2 Ag

reached equilibrium, the

[{Cu}^{2 +}]

was

XM

. If

500 mL

of water is further added, at equilibrium,

[{Cu}^{2 +}]

will be:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 46

Consider the following reversible reaction at equilibrium, $2 H_{2} O_{(g)} ⇌ 2 H_{2 (g)} + O_{2 (g)}; ΔH = 241 .7 kJ$

Which one of the following changes in conditions will lead to maximum decomposition of H₂O(g)?

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 47

Which among the following reactions will be favoured at low pressüre?