# Get Answers to all your Questions

#### Mechanism of a hypothetical reaction X2 + Y2 2XY is given below :(i) X2 X + X (fast)(ii) X + Y2  XY + Y (slow)(iii) X + Y XY (fast)The overall order of the reaction will be : Option 1) 1 Option 2) 2 Option 3) 0 Option 4) 1.5

As learnt

Rate of Law = Dependence of Rate on Concentration -

The representation of rate of a reaction in terms of concentration of the reactants is known as Rate Law

or

The Rate Law is the expression in which reaction rate is given in terms of molar concentration of reactants with each term raised to some power, which may/maynot be equal to stoichiometric of the reacting species in a balanced chemical equation

- wherein

Formula:

K= rate constant

The given reaction

X+

Slow step in the reaction is rate determining step

-----------------------(1)

Equilibrium constant for fast step

Substituting [X] in the first step will give

Rate =

=

Order of reaction = 1+

Option 1)

1

This option is incorrect

Option 2)

2

This option is incorrect

Option 3)

0

This option is incorrect

Option 4)

1.5

This option is correct

## NEET 2024 Most scoring concepts

Just Study 32% of the NEET syllabus and Score up to 100% marks

2

3