What is molecularity ?

1 Answer

Answer :

The number of molecular molecules , atoms or ions that take part in the occurrence of a chemical reaction is called the molecular weight of that sale.

Related questions

Description : When could order an molecularity of a reaction i) be Same ii) be different

Last Answer : Ans.: i) Order and molecularity will be same in single step reaction. ii) They will be different if reaction is of two or more steps.

Description : Differentiate between order of reaction and molecularity of reaction.

Last Answer : Order of reaction  Molecularity 1. It is defined as sum of powers to which concentration terms are raised in rate law ... can be determined, 4. Molecularity of complex reaction can not be determined.

Description : The number of species participating in the slowest step of the reaction is called molecularity of the reaction.

Last Answer : Define Equilibrium state

Description : Information about the order of reaction is obtained from its (a) Reaction rate (b) Molecularity (c) Rate equation (d) Half-life period

Last Answer : Ans:(c)

Description : Sum of the powers of the concentration terms in the rate equation is called the __________ of the reaction. (A) Order (B) Overall order (C) Molecularity (D) None of these

Last Answer : (B) Overall order

Description : The reactions of high molecularity are rare, because (A) Of very large activation energy of many bodies (B) Of low probability of many body collisions (C) Many body collisions are not favoured energetically (D) Of requirement of very large concentration for such reactions

Last Answer : (B) Of low probability of many body collisions

Description : Molecularity of a reaction (A) Is always equal to the overall order of reaction (B) May not be equal to the order of reaction (C) Can’t have a fractional value (D) Both (B) and (C

Last Answer : (D) Both (B) and (C

Description : Pick out the wrong statement. (A) In a multistep reaction, the slowest step is the rate determining step (B) In general, the rate of a reaction becomes triple for every 10°C rise in temperature (C ... energy (D) Molecularity of a reaction cannot be zero but the order of a reaction can be zero

Last Answer : (B) In general, the rate of a reaction becomes triple for every 10°C rise in temperature

Description : The experimentally determined overall order of the reaction, A + B → C + D, is two. Then the (A) Reaction is elementary with a molecularity of 2 (B) Molecularity of the reaction is 2, ... Reaction may be elementary with molecularity of 2 (D) Reaction is elementary but the molecularity may not be 2

Last Answer : (A) Reaction is elementary with a molecularity of 2

Description : The molecularity and the order of reaction respectively, for the hydrolysis of methyl acetate in presence of acids are (A) 2 & 1 (B) 11 & 2 (C) 2 & 2 (D) 1 & 1

Last Answer : (A) 2 & 1

Description : Molecularity of an elementary reaction, P + Q → R + S is (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : (D) 4

Description : Pick out the wrong statement. (A) Visible radiation provides the necessary activation energy in photochemical reactions (B) The order and molecularity of a complex reaction may not be the same (C) For ... rate constant (k) (D) Molecularity of the reaction is always a whole number greater than zero

Last Answer : (B) The order and molecularity of a complex reaction may not be the same