Competishun Header
Competishun
Contact Us
Back

Report Issue

JEE MAIN 2024
29-01-24 S1
Question
$\mathrm{KMnO}_4$ decomposes on heating at 513 K to form $\mathrm{O}_2$ along with
Select the correct option:
A
$\mathrm{MnO}_2 \& \mathrm{~K}_2 \mathrm{O}_2$
B
$\mathrm{K}_2 \mathrm{MnO}_4 \& \mathrm{Mn}$
C
$\mathrm{Mn} \& \mathrm{KO}_2$
D
$\mathrm{K}_2 \mathrm{MnO}_4 \& \mathrm{MnO}_2$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
$\mathrm{KMnO}_4 \xrightarrow{\Delta} \mathrm{~K}_2 \mathrm{MnO}_4+\mathrm{MnO}_2+\mathrm{O}_2$
Question Tags
JEE Main
Chemistry
Easy
Start Preparing for JEE with Competishun
YouTube
Books
App
Tests
Filters 0
JEE Main
JEE Advance
Easy
Medium
Hard
Showing 18 questions
QJEE ADVANCE 20102010
The correct structure of ethylenediaminetetraacetic acid (EDTA) is
JEE AdvanceChemistryEasy
View Solution→
QJEE ADVANCE 20102010
The bond energy (in $\mathbf{k c a l ~ m o l}^{-\mathbf{1}}$ ) of a $\mathrm{C}-\mathrm{C}$ single bond is approximately
JEE AdvanceChemistryEasy
View Solution→
QJEE ADVANCE 20102010
The species which by definition has ZERO standard molar enthalpy of formation at 298 K is
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20122012
Let $a_1, a_2, a_3, \ldots$. be in harmonic progression with $a_1=5$ and $a_{20}=25$. The least positive integer $n$ for which...
JEE AdvanceMathematicsEasy
View Solution→
QJEE ADVANCE 20102010
Plots showing the variation of the rate constant ( $k$ ) with temperature ( $T$ ) are given below. The...
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20132013
Of the three independent events $\mathrm{E}_1, \mathrm{E}_2$ and $\mathrm{E}_3$, the probability that only $\mathrm{E}_1$ occurs is $\alpha$, only $\mathrm{E}_2$ occurs...
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
A box $B_1$ contains 1 white ball, 3 red balls and 2 black balls. Another box $B_2$ contains 2 white...
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
Consider the set of eight vectors $V=\{a \hat{i}+b \hat{j}+c \hat{k}: a, b, c \in\{-1,1\}\}$. Three non-coplanar vectors can be chosen...
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20122012
If P is a $3 \times 3$ matrix such that $\mathrm{P}^{\top}=2 \mathrm{P}+\mathrm{I}$, where $\mathrm{P}^{\top}$ is the transpose of P and...
JEE AdvanceMathematicsEasy
View Solution→
QJEE ADVANCE 20102010
The correct statement about the following disaccharide is
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20132013
A box $B_1$ contains 1 white ball, 3 red balls and 2 black balls. Another box $B_2$ contains 2 white...
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20122012
The value of the integral $\int_{-\pi / 2}^{\pi / 2}\left(x^2+\ell \ln \frac{\pi+x}{\pi-x}\right) \cos x d x$ is
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
The coefficients of three consecutive terms of $(1+x)^{n+5}$ are in the ratio $5: 10: 14$. Then $n=$
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
A vertical line passing through the point $(h, 0)$ intersects the ellipse $\frac{x^2}{4}+\frac{y^2}{3}=1$ at the points $P$ and $Q$. Let...
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20122012
Four fair dice $\mathrm{D}_1, \mathrm{D}_2, \mathrm{D}_3$ and $\mathrm{D}_4$ each having six faces numbered $1,2,3,4,5$ and 6 are rolled simultaneously. The...
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
Let $S=S_1 \cap S_2 \cap S_3$, where $$ \begin{aligned} & S_1=\{z \in C:|z|<4\}, S_2=\left\{z \in C: \operatorname{Im}\left[\frac{z-1+\sqrt{3} i}{1-\sqrt{3} i}\right]>0\right\} \text...
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
For 3×3 matrices M and N, which of the following statement(s) is (are) NOT correct?
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
Let $S=S_1 \cap S_2 \cap S_3$, where $$ \begin{aligned} & S_1=\{z \in C:|z|<4\}, S_2=\left\{z \in C: \operatorname{Im}\left[\frac{z-1+\sqrt{3} i}{1-\sqrt{3} i}\right]>0\right\} \text...
JEE AdvanceMathematicsEasy
View Solution→