MCQ
The oxidation number of $\text{Mn}$ in potassium permanganate is :
- A$+6$
- ✓$+7$
- C$+5$
- D$+8$
✓
Answer
Correct option: B.
$+7$
Let $x $ be the oxidation number of manganese in potassium permanganate. $\ce{(KMnO_4)}$
The oxidation numbers of potassium and oxygen are $+1$ and $−2$ respectively.
The sum of the oxidation numbers in a neutral molecule is zero.
The oxidation numbers of potassium and oxygen are $+1$ and $−2$ respectively.
The sum of the oxidation numbers in a neutral molecule is zero.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
$NaO{H_{(aq)}},HC{l_{(aq)}}$ and $NaC{l_{(aq)}}$ concentration of each is ${10^{ - 3}}M$. Their $pH $ will be respectively
→Which of the following compounds is not expected to show Lassaignes' test for nitrogen ?
$S—O$ bond length is maximum in
→Which will have maximum $pH$
→Action of hydrogen chloride on $\mathop {\mathop {C{H_3} - C = C{H_2}}\limits_| }\limits_{\,\,\,\,\,C{H_3}} $ and on $CH \equiv CH$ will predominantly give the compounds, respectively
→The $IUPAC$ name for the compound is
→One mole of an ideal monoatomic gas is heated in a process $PV^{5/2} =$ constant. Amount heat absorbed in the process for $36\,^oC$ rise in temperature.....$cal$
→Petroleum ether can be used as
The degree of hydrolysis of $0.1\ M$ solution of $ArNH_3^+ Cl^-$ is $0.01$ . Find the degree of hydrolysis in $0.4\ M$ solution of $ArNH_3^+ Cl^-$
→In the periodic table, the element with atomic number $16$ will be placed in the group
→