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NEET UG CHEMISTRY MCQ: Equilibrium

1 Hard

1 of 1

Analyzing +4 | -1

{\mathrm{H}_2}\mathrm{S}

is passed into one

\mathrm{d}{\mathrm{m}^3}

of a solution containing

0.1\;\mathrm{mole}\;\mathrm{ of }\;\mathrm{Z}{\mathrm{n}^3}\mathrm{ \;and}\;0.01\;\mathrm{mole }\;\mathrm{of}\;\mathrm{ C}{\mathrm{u}^2}

  till the sulphide ion concentration reaches

8.1\; \times \;{10^{10}}

moles. Which one of the following statements is true? [

{K_{\mathrm{sp}}}

of

\mathrm{Zn}

and

\mathrm{CuS}

\mathrm{are}\;3\; \times {10^{22}}\;\mathrm{and}\;8\; \times {10^{36}}

respectively]

View answer and explanation

Correct option: B

\mathrm{Both}\;\mathrm{CuS }\;\mathrm{and }\;\mathrm{ZnS }\;\mathrm{precipitates}

Option B (

\mathrm{Both}\;\mathrm{CuS }\;\mathrm{and }\;\mathrm{ZnS }\;\mathrm{precipitates}

) is correct because the ionic product for both

CuS

and

ZnS

exceeds their respective

K_{sp}

values, causing them to precipitate.

More Questions from Equilibrium

Practice All Chapter MCQs →

Given below are two statements: One is labelled as Assertion A and the other labelled as Reason R.
Assertion A: During the boiling of water having temporary hardness,

Mg{(HC{O_3})_2}

is converted to

MgC{O_3}

.
Reason R The solubility product of

Mg{(OH)_2}

is greater than that of

MgC{O_3}

.
In the light of the above statements, choose the most appropriate answer from the options given below At a certain temperature,

K_{\mathrm{P}}

for the dissociation of solid

\mathrm{CaCO}_3

4.5 \times 10^{-2}

atm and for the reaction

\mathrm{C}(\mathrm{s})+\mathrm{CO}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{CO}(\mathrm{g}),

K_{\mathrm{P}}

2.0 \mathrm{~atm}.

The pressure of carbon monoxide at this temperature, when solid carbon

\mathrm{CaO}

\mathrm{CaCO}_3

are mixed together and allowed to attain equilibrium is Phenolphthalein shows … in acid medium. At the state of dynamic equilibrium, for solute

+

\leftrightharpoons

\mathrm{PC}{\mathrm{l}_5}\leftrightharpoons\mathrm{PC}{\mathrm{l}_3} + \mathrm{C}{\mathrm{l}_2}

, initial concentration of each reactant and product is 1 M. If

{K_{\mathrm{eq}}} = 0.41

then Select the

\mathrm{p}{K_a}

value of the strongest acid from the following