Embibe Experts Solutions for Chapter: Classification of Elements and Periodicity in Properties, Exercise 3: Exercise-3

The incorrect statement among the following is:

Arrange the following ions in order of their increasing size : ${\mathrm{Li}}^{+},{\mathrm{Mg}}^{2+},{\mathrm{K}}^{+},{\mathrm{Al}}^{3+}.$

Compounds that formally contain ${\mathrm{Pb}}^{4+}$ are easily reduced to ${\mathrm{Pb}}^{2+}.$ The stability of the lower oxidation state is due to _____ effect.

lonic radii of :

The correct order of radii is

The increasing order of the first ionization enthalpies of the elements $\mathrm{B}, \mathrm{P}, \mathrm{S}$ and $\mathrm{F}$ (lowest first) is:

Which of the following represents the correct order of increasing first ionisation enthalpy for $\mathrm{Ca}, \mathrm{Ba}, \mathrm{S}, \mathrm{Se} \mathrm{and} \mathrm{Ar}$?

The first ionisation potential of $\mathrm{Na}$ is $5.1\mathrm{eV}.$ The value of electron gain enthalpy of ${\mathrm{Na}}^{+}$ will be: