Chemical Equilibrium · Chemistry · WB JEE
MCQ (Single Correct Answer)
1
For the reaction $A \rightarrow B$ ，variation of concentration is plotted against time as shown below．
Which of the following statements is true？
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2
Consider the following gas phase dissociation, $\mathrm{PCl}_5(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_3(\mathrm{~g})+\mathrm{Cl}_2(\mathrm{~g})$ with equilibrium constant $K_P$ at a particular temperature and at pressure $P$. The degree of dissociation ( $\alpha$ ) for $\mathrm{PCl}_5(\mathrm{~g})$ is
WB JEE 2025
3
Which of the following statements is true about equilibrium constant and rate constant of a single step chemical reaction?
WB JEE 2024
4
The equilibrium constant for the following reactions are given at 25$$^\circ $$C
$$2A$$ $$\rightleftharpoons$$ B + C, K1 = 1.0
$$2B$$ $$\rightleftharpoons$$ C + D, K2 = 16
$$2C + 2D$$ $$\rightleftharpoons$$ 2P, K3 = 25
The equilibrium constant for the reaction
P $$\rightleftharpoons$$ $$A + {1 \over 2}$$B at 25$$^\circ $$C is
$$2A$$ $$\rightleftharpoons$$ B + C, K1 = 1.0
$$2B$$ $$\rightleftharpoons$$ C + D, K2 = 16
$$2C + 2D$$ $$\rightleftharpoons$$ 2P, K3 = 25
The equilibrium constant for the reaction
P $$\rightleftharpoons$$ $$A + {1 \over 2}$$B at 25$$^\circ $$C is
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5
In the equilibrium, H2 + I2 $$\rightleftharpoons$$ 2HI, if at a given temperature the concentration of the reactants are increased, the value of the equilibrium constant, KC, will
WB JEE 2019
6
Equilibrium constants for the following reactions at 1200 K are given
2H2O(g) $$\rightleftharpoons$$ 2H2(g) + O2(g), K1 = 6.4 $$\times$$ 10$$-$$8
2CO2(g) $$\rightleftharpoons$$ 2CO(g) + O2(g), K2 = 1.6 $$\times$$ 10$$-$$6
The equilibrium constant for the reaction?
H2(g) + CO2(g) $$\rightleftharpoons$$ CO(g) + H2O(g) at 1200 K will be
2H2O(g) $$\rightleftharpoons$$ 2H2(g) + O2(g), K1 = 6.4 $$\times$$ 10$$-$$8
2CO2(g) $$\rightleftharpoons$$ 2CO(g) + O2(g), K2 = 1.6 $$\times$$ 10$$-$$6
The equilibrium constant for the reaction?
H2(g) + CO2(g) $$\rightleftharpoons$$ CO(g) + H2O(g) at 1200 K will be
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