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Which of the following statement is not correct? A) molecularity of a reaction cannot be fractional B) molecularity of a reaction cannot be more than three C) molecularity of a reaction may or may not be equal to the order of the reaction D) molecularity of a reaction is obtained from balanced chemical equation?
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Which of the following statement is not correct? A) molecularity of a ...
Answer:

Molecularity of a Reaction

Molecularity of a reaction refers to the number of molecules or ions that participate in the rate-determining step of a chemical reaction. It is denoted by the symbol 'n'.

Statements and their Validity

A) Molecularity of a reaction cannot be fractional: True. The molecularity of a reaction can either be an integer or a whole number. It cannot be a fraction.

B) Molecularity of a reaction cannot be more than three: False. The molecularity of a reaction can be any whole number, including values greater than three.

C) Molecularity of a reaction may or may not be equal to the order of the reaction: True. The molecularity of a reaction is determined by the number of molecules or ions involved in the rate-determining step. The order of a reaction, on the other hand, is determined experimentally, and it may or may not be equal to the molecularity of the reaction.

D) Molecularity of a reaction is obtained from balanced chemical equation: False. The balanced chemical equation only provides information about the reactants and products involved in the reaction. The molecularity of a reaction can only be determined experimentally by analyzing the rate law of the reaction.

Conclusion

In conclusion, statement B is not correct. The molecularity of a reaction can be any whole number, including values greater than three.
Community Answer
Which of the following statement is not correct? A) molecularity of a ...
Molecularity of reaction should be equal to the order of reaction
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Read the passage given below and answer the following questions:The rate of a reaction, which may also be called its velocity or speed, can be defined with relation to the concentration of any of the reacting substances, or to that of any product of the reaction. If the species chosen is a reactant which has a concentration c at time t the rate is - dc/dt, while the rate with reference to a product having a concentration x at time t is dx/dt. Any concentration units may be used for expressing the rate; thus, if moles per liter are employed for concentration and seconds for the time, the units for the rate are moles litre–1sec–1. For gas reactions pressure units are sometimes used in place of concentrations, so that legitimate units for the rate would be (mm. Hg) sec–1 and atm. sec–1 The order of a reaction concerns the dependence of the rate upon the concentrations of reacting substances; thus, if the rate is found experimentally to be proportional to the ath power of the concentration of one of the reactants A, to the both power of the concentration of a second reactant B, and so forth, via., rate = k CAα CAβ the over-all order of the reaction is simply n = α + β + ----- (2) Such a reaction is said to be of the αth order with respect to the substance A, the βth order with respect to B.In the following questions, a statement of Assertion followed by a statement of Reason is given. Choose the correct answer out of the following choices on the basis of the above passage.Assertion: Rate of reaction is a measure of change in concentration of reactant with respect to time.Reason: Rate of reaction is a measure of change in concentration of product with respect to time.

Read the passage given below and answer the following questions:The rate of a reaction, which may also be called its velocity or speed, can be defined with relation to the concentration of any of the reacting substances, or to that of any product of the reaction. If the species chosen is a reactant which has a concentration c at time t the rate is - dc/dt, while the rate with reference to a product having a concentration x at time t is dx/dt. Any concentration units may be used for expressing the rate; thus, if moles per liter are employed for concentration and seconds for the time, the units for the rate are moles litre–1sec–1. For gas reactions pressure units are sometimes used in place of concentrations, so that legitimate units for the rate would be (mm. Hg) sec–1 and atm. sec–1 The order of a reaction concerns the dependence of the rate upon the concentrations of reacting substances; thus, if the rate is found experimentally to be proportional to the ath power of the concentration of one of the reactants A, to the both power of the concentration of a second reactant B, and so forth, via., rate = k CAα CAβ the over-all order of the reaction is simply n = α + β + ----- (2) Such a reaction is said to be of the αth order with respect to the substance A, the βth order with respect to B.In the following questions, a statement of Assertion followed by a statement of Reason is given. Choose the correct answer out of the following choices on the basis of the above passage.Assertion: The unit of k is independent of order of reaction.Reason: The unit of k is moles L–1s–1.

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Which of the following statement is not correct? A) molecularity of a reaction cannot be fractional B) molecularity of a reaction cannot be more than three C) molecularity of a reaction may or may not be equal to the order of the reaction D) molecularity of a reaction is obtained from balanced chemical equation?
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Which of the following statement is not correct? A) molecularity of a reaction cannot be fractional B) molecularity of a reaction cannot be more than three C) molecularity of a reaction may or may not be equal to the order of the reaction D) molecularity of a reaction is obtained from balanced chemical equation? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statement is not correct? A) molecularity of a reaction cannot be fractional B) molecularity of a reaction cannot be more than three C) molecularity of a reaction may or may not be equal to the order of the reaction D) molecularity of a reaction is obtained from balanced chemical equation? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statement is not correct? A) molecularity of a reaction cannot be fractional B) molecularity of a reaction cannot be more than three C) molecularity of a reaction may or may not be equal to the order of the reaction D) molecularity of a reaction is obtained from balanced chemical equation?.
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