(C) Step $1$: Analyze the rate laws for the given reactions.Step $2$: The decomposition of acetaldehyde, $CH_3CHO(g) \rightarrow CH_4(g) + CO(g)$, fol

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

$CH_3CHO(g) \rightarrow CH_4(g) + CO(g)$

(C) Step $1$: Analyze the rate laws for the given reactions.Step $2$: The decomposition of acetaldehyde, $CH_3CHO(g) \rightarrow CH_4(g) + CO(g)$, follows the rate law $Rate = k[CH_3CHO]^{1.5}$.Step $3$: The overall order of a reaction is the sum of the powers of the concentration terms in the rate law expression.Step $4$: For the decomposition of acetaldehyde, the order is $1.5$.Step $5$: Other reactions listed are typically first or second order. Thus, option $C$ is correct.

Class 12 Chemistry Chemical Kinetics Rate law , Rate constant , Order of Reaction and Molecularity

Medium

Which of the following reactions has an overall order of $1.5$?

MHT CET 2026 All MHT CET

A
$2H_2O_2(g) \rightarrow 2H_2O(l) + O_2(g)$
B
$H_2(g) + I_2(g) \rightarrow 2HI(g)$
C
$CH_3CHO(g) \rightarrow CH_4(g) + CO(g)$
D
$2NO(g) + 2H_2(g) \rightarrow N_2(g) + 2H_2O(l)$

Explore More

Browse All

Question Bank

All Subjects

Class 12 Questions

Class 12

Chemistry Questions

Chapter

Chemical Kinetics

Subtopic

Rate law , Rate constant , Order of Reaction and Molecularity

Previous Year

MHT CET 2026 Paper All MHT CET years →

In the reaction $X \to Y$,if the concentration of reactant $X$ is increased by $1.5$ times,the rate of reaction increases by $1.837$ times. Determine the order of the reaction with respect to $X$.

Medium

View Solution

Units of rate constant of first and zero order reactions in terms of molarity $M$ unit are respectively

EasyAIEEE 2002

View Solution

For the reaction $RCl + NaOH_{(aq)} \rightarrow ROH + NaCl$,the rate is given by $Rate = K_1[RCl]$. What will happen to the reaction rate?

Easy

View Solution

Define the following terms:
$(1)$ Rate law / Rate equation / Rate expression
$(2)$ Unimolecular reaction

Medium

View Solution

The following results have been obtained during the kinetic studies of the reaction: $2 \ NO + 2 \ H_2 \longrightarrow N_2 + 2 \ H_2O$
Expt $\frac{-d[NO]}{dt} \ (mol \ L^{-1} \ s^{-1})$ $[NO] \ (mol \ L^{-1})$ $[H_2] \ (mol \ L^{-1})$
$1$ $4.8 \times 10^{-5}$ $1 \times 10^{-2}$ $1 \times 10^{-3}$
$2$ $43.2 \times 10^{-5}$ $3 \times 10^{-2}$ $1 \times 10^{-3}$
$3$ $86.4 \times 10^{-5}$ $3 \times 10^{-2}$ $2 \times 10^{-3}$

MediumTS EAMCET 2019

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

Expt	$\frac{-d[NO]}{dt} \ (mol \ L^{-1} \ s^{-1})$	$[NO] \ (mol \ L^{-1})$	$[H_2] \ (mol \ L^{-1})$
$1$	$4.8 \times 10^{-5}$	$1 \times 10^{-2}$	$1 \times 10^{-3}$
$2$	$43.2 \times 10^{-5}$	$3 \times 10^{-2}$	$1 \times 10^{-3}$
$3$	$86.4 \times 10^{-5}$	$3 \times 10^{-2}$	$2 \times 10^{-3}$

Which of the following reactions has an overall order of $1.5$?

Similar Questions

In the reaction $X \to Y$,if the concentration of reactant $X$ is increased by $1.5$ times,the rate of reaction increases by $1.837$ times. Determine the order of the reaction with respect to $X$.

Units of rate constant of first and zero order reactions in terms of molarity $M$ unit are respectively

For the reaction $RCl + NaOH_{(aq)} \rightarrow ROH + NaCl$,the rate is given by $Rate = K_1[RCl]$. What will happen to the reaction rate?

Define the following terms:$(1)$ Rate law / Rate equation / Rate expression$(2)$ Unimolecular reaction

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Define the following terms:
$(1)$ Rate law / Rate equation / Rate expression
$(2)$ Unimolecular reaction