Embibe Experts Solutions for Chapter: The d- and f-Block Elements, Exercise 2: Level 2

Which of the following is the most suitable description of transition elements?

Which one of the ionic species will impart colour to an aqueous solution?

For the process $\mathrm{Cu}\left(\mathrm{g}\right)\to {\mathrm{Cu}}^{+}\left(\mathrm{g}\right)+{\mathrm{e}}^{-}$, the electron is to be removed from ___________

In general, the melting and the boiling points of transition metals:

STATEMENT-$1$: The number of unpaired electrons in the following gaseous ions:
${\mathrm{Mn}}^{3+},{\mathrm{Cr}}^{3+},{\mathrm{V}}^{3+}$ and ${\mathrm{Ti}}^{3+}$ are $4,3,2$ and $1$, respectively.

STATEMENT-$2$: ${\mathrm{Cr}}^{3+}$ is the most stable in aqueous solution among these ions.

Standard reduction electrode potential of ${\mathrm{Zn}}^{2+}/\mathrm{Zn}$ is $-0.76 \mathrm{V}$. This means:

Which one of the following shows the highest magnetic moment?

Which of the following factors may be regarded as the main cause of lanthanoid contraction?