Class XI Chemistry Quiz: Equilibrium
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Preview questions
1. What is the equilibrium constant (K) for a reaction at equilibrium?
The ratio of concentrations of products to reactants · The sum of concentrations of all species · The difference in concentrations of products and reactants · The rate of the forward reaction
2. Which of the following changes does NOT affect the equilibrium position?
Change in temperature · Change in pressure · Addition of inert gas · Change in concentration of reactants
3. For the reaction N2(g) + 3H2(g) ⇌ 2NH3(g), what happens when pressure is increased?
Equilibrium shifts to the left · Equilibrium shifts to the right · No effect on equilibrium · Reaction stops completely
4. Which of the following statements is true about dynamic equilibrium?
The concentrations of reactants and products are equal · The rate of forward reaction equals the rate of reverse reaction · The reaction has completely stopped · Only reactants are present
5. What effect does increasing temperature have on an exothermic reaction at equilibrium?
Shifts equilibrium to the right · Shifts equilibrium to the left · No effect on equilibrium · Increases the rate of the reaction
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