Which of the following has second ionisation potential less than expected

  • A

    $Cr$

  • B

    $Zn$

  • C

    $V$

  • D

    $Mo$

Similar Questions

Why transition elements form a coloured compounds?

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 $25$ )

  • [JEE MAIN 2024]

In which of these processes platinum is used as a catalyst

Assertion : Transition metals are good catalysts.

Reason : $V_2O_5$ or $Pt$ is used in the preparation of $H_2SO_4$ by contact process.

  • [AIIMS 2015]

Which of the following sulphides is yellow in colour