Assertion : In rate law, unlike in the expression for equilibrium… - Vidyadip

MCQ

Assertion : In rate law, unlike in the expression for equilibrium constants, the exponents for concentrations do not necessarily match the stoichiometric coefficients.

Reason : It is the mechanism and not the balanced chemical equation for the overall change that governs the reaction rate.

✓
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.

✓

Answer

Correct option: A.

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

a
Rate law is always written according to the slowest step and thus the exponents for concentrations do not necessarily match the stiochiometric coefficients.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 3. Chemical kinetics→3. Chemical kinetics — all question types→Chemistry STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

An alkene $\ce{CH_3CH=CH_2}$ is treated with $\ce{B_2H_6}$ in presence of $\ce{H_2O_2}$. The final product formed is:

The number of element from the following that do not belong to lanthanoids is:

$\mathrm{Eu}, \mathrm{Cm}, \mathrm{Er}, \mathrm{Tb}, \mathrm{Yb}$ and $\mathrm{Lu}$

In the extraction of chlorine by electrolysis of brine $......$

Which of the following oxidizes ${H_2}O$ to oxygen

The molar conductivities $\Lambda _{NaOH}^o$ and $\Lambda _{HCl}^o$ at infinite dilution in water at $25^o C$ are $91.0$ and $426.2\, S \,cm^2/mol$ respectively. To calculate $\Lambda _{HOAc}^o,$ the additional value required is

Which of the following compound gives secondary amine on reduction?

Assertion : Aniline does not undergo Friedel- Crafts reaction.
Reason : $-NH_2$ group of aniline reacts with $AlCl_3$ (Lewis acid) to give acid-base reaction

What is the product obtained in the following reaction

$[Cu(CN)_4]^{2-}$ is more stable than $[Cu(NH_3)_4]^{2+}$ because :-

The half$-$life of a reaction is halved as the initial concentration of the reactant is doubled. The order of the reaction is$:$