Select the correct statements.

Important Questions on Chemical Equilibrium

EASY

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.1>Q 15

Which are heterogeneous system?

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.1>Q 16

Select the correct statements:

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.1>Q 17

${\mathrm{PCl}}_5\left(\mathrm{g}\right)\rightleftharpoons {\mathrm{PCl}}_3\left(\mathrm{g}\right)+{\mathrm{Cl}}_2\left(\mathrm{g}\right)$
Which of the following sketches may represent the above equilibrium? Assume equilibrium can be achieved from either side and by taking anyone or more components initially.(Given ${\mathrm{K}}_{\mathrm{C}}$ for the reaction$<2$ ).

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.2>Q 1

The equilibrium constant of a reaction doubles on increasing the temperature of the reaction from $25°\mathrm{C}$ to $35°\mathrm{C}$. Calculate enthalpy change of the reaction, assuming it to be constant in this temperature range.

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.2>Q 2

Sulphide ion in an alkaline solution reacts with solid sulphur to form polysulphide ions having formula${\mathrm{S}}_2^{{}^{2-}}, {\mathrm{S}}_3^{2-}, {\mathrm{S}}_4^{2-}, \mathrm{etc}. \mathrm{If} {\mathrm{K}}_1=12 \mathrm{for} \mathrm{S}+{\mathrm{S}}^{-2}\rightleftharpoons {\mathrm{S}}_2^{2-} \mathrm{and} {\mathrm{K}}_2=132 \mathrm{for} 2 \mathrm{S}+{\mathrm{S}}^{2-}\leftrightharpoons {\mathrm{S}}_3^{2-},$calculate ${\mathrm{K}}_3$ for $\mathrm{S}+{\mathrm{S}}_2^{2-}\rightleftarrows {\mathrm{S}}_3^{2-}$.

EASY

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.2>Q 3

Predict which of the following reaction will have an appreciable concentration of reactants and products:
${\mathrm{Cl}}_2\left(\mathrm{g}\right)\rightleftharpoons 2\mathrm{Cl}\left(\mathrm{g}\right)$, ${\mathrm{K}}_{\mathrm{c}}=5\times {10}^{-39}$

EASY

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.2>Q 3

Predict which of the following reaction will have an appreciable concentration of reactants and products:
${\mathrm{Cl}}_2\left(\mathrm{g}\right)+2\mathrm{NO}\left(\mathrm{g}\right)\rightleftharpoons 2\mathrm{NOCl}\left(\mathrm{g}\right)$, ${\mathrm{K}}_{\mathrm{c}}=3.7\times {10}^8$.

EASY

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.2>Q 3

Predict which of the following reaction will have an appreciable concentration of reactants and products:
${\mathrm{Cl}}_2 \left(\mathrm{g}\right)+2{\mathrm{NO}}_2 \left(\mathrm{g}\right)\rightleftharpoons 2{\mathrm{NO}}_2\mathrm{Cl} \left(\mathrm{g}\right)$, ${\mathrm{K}}_{\mathrm{c}}=1.8$