Embibe Experts Solutions for Chapter: The d- and f-Block Elements, Exercise 1: Exercise 1

Which of the following statement is false?

Which of the following oxide of Mn is most acidic:

The meiting point of $\mathrm{Zn}$ is lower as compared to those of the other elements of $3\mathrm{d}$ series because:

When a metal sulphate is heated in dry test tube, the colour changes from blue to white. Then metal sulphate may be:

Oxidation state of osmium $\left(\mathrm{Os}\right)$ in ${\mathrm{OsO}}_{\mathrm{4}}$ is ______.

The colour of transition metal ions is attributed to:

When a mixture of solid $\mathrm{NaCl}$ and solid ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ is heated with concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$, deep red vapours are obtained. This is due to the formation of:

The $\mathrm{f}-$block of the periodic table contains those elements in which: