MCQ
$MnO_4^ - $ on reduction in acidic medium forms
- A$Mn{O_2}$
- ✓$M{n^{ + 2 }}$
- C$MnO_4^{ - 2 }$
- D$Mn$
✓
Answer
Correct option: B.
$M{n^{ + 2 }}$
b
It’s Obvious.
It’s Obvious.
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
Assertion : Europium $(II)$ is more stable than cerium $(II)$.
→Reason : Cerium salts are used as catalyst in petroleum cracking.
Give the correct order of initials $T$ or $F$ for following statements. Use $T$ if statement is true and $F$ if it is false :
$(I)$ The order of repulsion between different pair of electrons is $l_P - l_P > l_P - b_P > b_P - b_P$
$(II)$ In general, as the number of lone pair of electrons on central atom increases, value of bond angle from normal bond angle also increases
$(III)$ The number of lone pair on $O$ in $H_2O$ is $2$ while on $N$ in $NH_3$ is $1$
$(IV)$ The structures of xenon fluorides and xenon oxyfluorides could not be explained on the basis of $VSEPR$ theory
→$(I)$ The order of repulsion between different pair of electrons is $l_P - l_P > l_P - b_P > b_P - b_P$
$(II)$ In general, as the number of lone pair of electrons on central atom increases, value of bond angle from normal bond angle also increases
$(III)$ The number of lone pair on $O$ in $H_2O$ is $2$ while on $N$ in $NH_3$ is $1$
$(IV)$ The structures of xenon fluorides and xenon oxyfluorides could not be explained on the basis of $VSEPR$ theory
The intermediate $X$, in the reaction
→$[Image]$ is ..... .
In order that the diagram below correctly depict the structure of $ICl_2^ -$ , at what position should the $Cl$ atoms be drawn ?
→$KI$ is oxidised into $I_2$ by using the reagent
→The electronic configuration (outermost) of $M{n^{ + 2}}$ ion (atomic number of $Mn = 25$) in its ground state is
→Number of electrons in the outermost orbit of the element of atomic number $ 15 $ is
→$0.50\,L$ of a $0.60\,M$ $CuSO_4$ solution is electrolyzed for a period of $30.0\,min$ using a current of $4.60\,A$. If inert electrodes are used, what is the final concentration of $Cu^{2+}$ remaining in the solution ? ............. $\mathrm{M}$
→Heisenberg uncertainty principle is not valid for :
In the reaction $A + 2B$ $\rightleftharpoons$ $2C$, if $2$ moles of $A,\,\,3.0$ $moles$ of $B$ and $2.0$ $moles$ of $C$ are placed in a $2.0\,\,l$ flask and the equilibrium concentration of $C$ is $0.5$ $mole/$$l$. The equilibrium constant $({K_c})$ for the reaction is
→