NEET UG CHEMISTRY MCQ: Equilibrium

1 Hard

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Analyzing +4 | -1

Equilibrium constant

({K})

for the reaction

{Ni}({s})+4 {CO}({g}) \rightleftharpoons {Ni}({CO})_4({~g})

can be written in terms of

(1)

{Ni}({s})+2 {CO}_2({~g})+2 {C}(\mathrm{s}) \rightleftharpoons {Ni}({CO})_4({~g})

; equilibrium constant

={K}_{{1}}

.

(2)

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

; equilibrium constant

={K}_2

.

What is the relation between

{K}, {K}_2

and

{K}_2

View answer and explanation

Correct option: A

{K}=\left({K}_1\right) /\left({K}_2\right)^2

Option A (

{K}=\left({K}_1\right) /\left({K}_2\right)^2

) is correct because it represents the correct relationship between the equilibrium constants when manipulating the given reactions to obtain the target reaction.

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}),

the

K_{\mathrm{P}}

value is

2.0 \mathrm{~atm}.

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

\mathrm{CaO}

and

\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

+

solvent

\leftrightharpoons

solution. For

\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