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CBSE
Class 11 Chemistry
Equilibrium Chapter 7
Quiz 1
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When ice is in equilibrium with water,during equilibrium
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Amount of ice melting is equal to amount of water freezing
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There is no melting and no freezing
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Amount of ice melting is more than amount of freezing
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Amount of ice is equal to amount of water
Which is not the characteristics of equilibrium
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Rate of forward is equal to the rate of backward reaction
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The concentrations of reacting substances remains static
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The pressure, temperature ,enthalpy change of the system is zero
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Reaction completely cease at equilibrium
Equilibrium is best defined as
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Stage where the concentration of reactants is less than that of products
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Stage where concentration of reactants is equal to that of products
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Stage where the rate of forward reaction is equal to that of backward reaction
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Stage where the concentration of reactants is more than that of products
Which of the folowing characterizes Equilibrium
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Dynamic nature
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Requires a closed system
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Can be physical or chemical
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All of the above
Equilibrium can be attained in
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all types of system
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closed system
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open system
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isolated system
A moles of A reactants react with b moles of B reactants to form c moles of product C. Which of the following is true for rate of reaction
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Rate= k[A][B]
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Rate=k[A]a[B]b
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Rate=k[A]a+[B]b
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Rate=k[A]a[B]b/[C]c
Which one of the following is correct about a reversible chemical reaction at equilibrium
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all chemical reactions have ceased
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the rates of the forward and reverse reactions are equal
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the rate constants of the forward and reverse reactions are equal
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the value of the equilibrium constant is 1
Which are not the conditions of setting of an equilibrium
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All reactions should be carried out at STP
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All reactions should be carried out at constant temperature
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All reactions should be carried out in open containers
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Gaseous reactions should be carried out in closed containers
In which of the following reaction can equilibrium be attained
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Reversible reaction
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Cyclic reaction
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Decomposition reaction
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Irreversible reaction
Rate of reaction is proportional to product of molar concentration of reactants with each concentration term raised to power its stiochiometric coefficient. This is the law of
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Equilibrium
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Mass action
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Constant proportion
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Reciprocal proportions
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