Consider the following reaction
$\mathrm{MnO}_2+\mathrm{KOH}+\mathrm{O}_2 \rightarrow \mathrm{A}+\mathrm{H}_2 \mathrm{O} .$
Product ' $A$ ' in neutral or acidic medium disproportionate to give products ' $\mathrm{B}$ ' and ' $\mathrm{C}$ ' along with water. The sum of spin-only magnetic moment values of $B$ and $C$ is . . . . . .$BM$. (nearest integer)
(Given atomic number of $\mathrm{Mn}$ is $25$ )
$3$
$4$
$5$
$7$
The highest magnetic moment is shown by the transition metal ion with the outer electronic configuration
For $d-$ block elements the first ionization potential is of the order
In the ground state of cobalt atom $(Z = 27)$ there are ....... unpaired electrons and thus the atom is.......
Which of the following statements is incorrect
Which of the following is $NOT$ a characteristic of the transition elements in the series from scandium to zinc?