The rate of reaction usually decreases with time.

True

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False

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Solution

The correct option is A True
The speed of a chemical reaction may be defined as the change in concentration of a substance divided by the time interval during which this change is observed. Hence rate of reaction is inversely related as the time increases rate of reaction decreases. Hence given statement is true.

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Similar questions

Which of the following statements is correct ?
(a) The rate of reaction decreases with passage of time as the concentration of reactants decreases
(b) The rate of reaction is same at any time during the reaction
(c) The rate of a reaction is independent of temperature change
(d) The rate of a reaction decreases with increase in concentration of reactant (s)

Which of the following statements are in accordance with the Arrhenius equation?
(a) Rate of a reaction increases with increase in temperature
(b) Rate of a reaction increases with a decrease in activation energy
(c) Rate constant decreases exponentially with an increase in temperature
(d) Rate of reaction decreases with a decrease in activation energy

Q. The rate of a reaction decreases with increase in _________________.

Q. Assertion :Rate of reaction for reactants is negative Reason: The negative sign indicates decrease in concentrations of reactions with time

Q. Assertion :For zero order reaction the rate of reaction does not decrease with time. Reason: For zero order reaction amount of substance reacted is proportional to time.

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