For the given reaction-NO2-F2-2NO2FMechanism involves two steps-I- NO2-F2-2NO2F-F SlowII - NO2-F - NO2F FastChoose the correct option-

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Zero Order Reaction

For the given...

Question

For the given reaction:
$N O_{2} + F_{2} \to 2 N O_{2} F$
Mechanism involves two steps:
$I: N O_{2} + F_{2} \to 2 N O_{2} F + F (S l o w)$
$II : N O_{2} + F \to N O_{2} F (F a s t)$
Choose the correct option:

Molecularity of

I

step is 3

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I I

is the rate determining step

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I

is the rate determining step

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Molecularity of

I

step is 1

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Solution

The correct option is C $I$ is the rate determining step
For complex reactions, every step behaves as an elementary reaction. So, each step has its own molecularity.
For elementary reaction, molecularity is the sum of stoichiometric coefficients of reactants
For $I$ , the molecularity is 2.
For $I I$ , the molecularity is also 2.

Rate Determine Step (R.D.S.)
The step of a complex reaction, which is the slowest and on which, the overall reaction rate is dependent.
The concentration terms of reactants, which are involved in R.D.S,generally, determine the order of that reaction.
Rate law of R.D.S. is equal to Rate law of reaction
$I: N O_{2} + F_{2} \to 2 N O_{2} F + F (S l o w)$ is the rate determining step.

Rate law according to R.D.S
$Rate = k [N O_{2}] [F_{2}]$

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Similar questions

Q. What is the unit of Rate constant in case of the reaction

2 N O_{2}

+

F_{2}

=

2 N O_{2} F

, where the law of mass action is expressed as Rate =

k

[N O_{2}]^{2}

[F_{2}]

Q. The rate expression for a chemical reaction,

2 N O_{2} F \to 2 N O_{2} + F_{2}

is given by rate

= K [N O_{2} F]^{2}

Which of the following equation will have similar rate?

Q. Formation of

N O_{2} F

from

N O_{2}

and

F_{2}

as per the reaction

2 N O_{2} (g) + F_{2} (g) \to 2 N O_{2} F (g)

is a second order reaction, first order with respect to

N O_{2}

and first order with respect to

F_{2}

. If

N O_{2}

and

F_{2}

are present in a closed vessel in ratio

2 : 1

maintained at a constant temperature with an initial total pressure of

3

atm., what will be the total pressure in the vessel after the reaction is complete?

Q. Let f(x) be twice differentiable function such that f "(x) > 0 in [0, 2]. Then which of the following option(s) is/are correct?

Q. Classify each of the following on the basis of their atomicity

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(b)

N O_{2}

(c)

N_{2} O

(d)

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(e)

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(f)

H_{2} O_{2}

(g)

P_{4} O_{10}

(h)

O_{3}

(i)

H C I

(j)

C H_{4}

(k)

H e

(l)

A g

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For the given reaction: NO2+F2→2NO2F Mechanism involves two steps: I: NO2+F2→2NO2F+F (Slow) II : NO2+F→NO2F (Fast) Choose the correct option:

For the given reaction:
$N O_{2} + F_{2} \to 2 N O_{2} F$
Mechanism involves two steps:
$I: N O_{2} + F_{2} \to 2 N O_{2} F + F (S l o w)$
$II : N O_{2} + F \to N O_{2} F (F a s t)$
Choose the correct option: