Rate of Reaction Questions and Answers

An increase in the concentration of reactant 1. Does not alter the reaction rate 2. Decreases the reaction rate 3. Increase the reaction rate 4. None of the above

Fast reactions are those which are completed in 1. Few hours 2. Few days 3. Instantaneously 4. None

An example for the fast reaction is 1. Burning of Mg 2. Rusting of Iron 3. Digestion of food 4. All the above

Moderate reactions are those which are completed in 1. A few minutes 2. A few hours 3. Instantaneously 4. All the above

The factors influencing the equilibrium state is 1. Concentration and pressure 2. Temperature and catalyst 3. Both (1) and (2) 4. None

A reversible reaction is one in which products are reconverted to reactants. A reversible reaction 1. Indicates a state of equilibrium 2. Does not indicated the state of equilibrium 3. Gives information of only a forward reaction 4. Gives information of only a backward reaction

When the temperature of a reaction is increased by 10°C, rate of the reaction is 1. Not all affected 2. Generally doubled or tripled 3. Decreased ten times 4. None of the above

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Rate of Reaction Questions and Answers

Catalyst can be defined as a substance 1. Which alters the reaction rate 2. Which initiates the reaction 3. Which does not alter the reaction rate 4. None of the above

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An increase in the concentration of reactant 1. Does not alter the reaction rate 2. Decreases the reaction rate 3. Increase the reaction rate 4. None of the above

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Fast reactions are those which are completed in 1. Few hours 2. Few days 3. Instantaneously 4. None

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An example for the fast reaction is 1. Burning of Mg 2. Rusting of Iron 3. Digestion of food 4. All the above

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Moderate reactions are those which are completed in 1. A few minutes 2. A few hours 3. Instantaneously 4. All the above

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The factors influencing the equilibrium state is 1. Concentration and pressure 2. Temperature and catalyst 3. Both (1) and (2) 4. None

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A reversible reaction is one in which products are reconverted to reactants. A reversible reaction 1. Indicates a state of equilibrium 2. Does not indicated the state of equilibrium 3. Gives information of only a forward reaction 4. Gives information of only a backward reaction

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When the temperature of a reaction is increased by 10°C, rate of the reaction is 1. Not all affected 2. Generally doubled or tripled 3. Decreased ten times 4. None of the above

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