MCQ
What is formula of manganate ion?
- A$MnO _2^{-}$
- B$MnO _4^{-}$
- ✓$MnO _4^2$
- D$Mn ^{2+}$
✓
Answer
Correct option: C.
$MnO _4^2$
C
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
Barium ions, CN− and Co2+ form an ionic complex. If that complex is supposed to be 75% ionised in water with vant Hoff factor 'i' equal to four, then the coordination number of Co2+ in the complex can be.
In $3$ -methyl- $2$ -cyclohexenone which hydrogen cannot undergo deuterium exchange when it reacts with $CH_3O^{\circleddash} /CH_3OD$?
→The $IUPAC$ name for the complex $[Co(NH_3)_5 (NO_2)]Cl_2$ is
→The specific conductivity of $N/10$ $KCl$ solution at ${20\,^o}C$ is $0.0212\,oh{m^{ - 1}}\,c{m^{ - 1}}$ and the resistance of cell containing this solution at ${20\,^o}C$ is $55\,ohm$. The cell constant is ............. $\mathrm{cm}^{-1}$
→In the reaction the major product formed is
The negative $Zn$ pole of a Daniel cell, sending a constant current through a circuit, decreases in mass by $0.13\,g$ in $30$ minutes. If the electrochemical equivalent of $Zn$ and $Cu$ are $32.5$ and $31.5$ respectively, the increase in the mass of the positive $Cu$ pole in this time is .............. $\mathrm{g}$
→Wolf kishner reduction, reduces
The amount of urea to be dissolved in $500\,ml$ of water ($K =18.6\,K$ $mol{e^{ - 1}}$ in $100\,g$ solvent) to produce a depression of ${0.186\,^o}C$ in freezing point is ....... $g$.
→How many primary amines are possible for the formula C4H11N?
The final product $\mathrm{A}$, formed in the following multistep reaction sequence is:
→