Question

40. 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
(1) 1 (2) 2
(3) 0 (4) 1.5

Answer 1

Answer:

option (4) is correct

Explanation:

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