Ionization Enthalpy and its Applications

The atomic number of Vanadium $\left(\mathrm{V}\right)$, Chromium $\left(\mathrm{Cr}\right)$, Manganese $\left(\mathrm{Mn}\right)$ and Iron $\left(\mathrm{Fe}\right)$ are, respectively, $23, 24, 25 \mathrm{and} 26$. Which one of these may be expected to have the highest second ionization enthalpy?

The correct order of ionization energy is

Among ${\mathrm{P}}_2{\mathrm{O}}_5,{\mathrm{As}}_2{\mathrm{O}}_3,{\mathrm{Sb}}_2{\mathrm{O}}_3$ and ${\mathrm{Bi}}_2{\mathrm{O}}_3,$ the most acidic oxide is
 

The first ionisation energy of $\mathrm{Na},\mathrm{B},\mathrm{N}$ and $\mathrm{O}$ atoms follows the order
 

The successive ionization energies of an element, in $\mathrm{kJ}·{\mathrm{mol}}^{-1}$ are $1060,1900, 2920, 6280$ and $21200.$ This element would belong to group- $\underline{ }$

Which order among the following is incorrect ?

Which element among the following is most probable to have the following values?

${\mathrm{\Delta }}_{\mathrm{i}}{\mathrm{H}}_1=419 \mathrm{kJ}{ \mathrm{mol}}^{-1}$
${\mathrm{\Delta }}_{\mathrm{i}}{\mathrm{H}}_2=3051 \mathrm{kJ}{ \mathrm{mol}}^{-1}$
${\mathrm{\Delta }}_{\mathrm{eg}}\mathrm{H}=-48 \mathrm{kJ}{ \mathrm{mol}}^{-1}$

If the successive ionization energies of an element $\mathrm{A}$ are $165, 190, 550$ and $595\mathrm{kcal},$ respectively, then the ground state electronic configuration of element $\mathrm{A}$ is

Identify the incorrect order corresponding the mentioned property?

Arrange $\mathrm{B}\mathrm{e},\mathrm{}\mathrm{M}\mathrm{g},\mathrm{}\mathrm{C}\mathrm{a},\mathrm{}\mathrm{S}\mathrm{r}$ in the ascending order of ionisation enthalpy.

The correct order of $1^{\mathrm{st}}$ ionisation enthalpy among the following elements $\mathrm{Be}, \mathrm{B}, \mathrm{C}, \mathrm{N}, \mathrm{O}$ is

Which element has the highest first ionization potential?

The first ionization potential $\left(\mathrm{IP}\right)$ of the elements $\mathrm{Na},\mathrm{Mg},\mathrm{Si},\mathrm{P},\mathrm{Cl}$ and $\mathrm{Ar}$ are $5.14,7.65,8.15 10.49,12.97$ and $15.76 \mathrm{eV},$ respectively. The $\mathrm{IP}$ (in $\mathrm{eV}$) of $\mathrm{K}$ is closest to :

Which of the following do not show regular trend for ${\mathrm{IE}}_1$?

Which of the following relation is correct with respect to first (I) and second (II) ionisation potentials of sodium and magnesium ?

Which of the following relations are correct for $\mathrm{F} \& \mathrm{Cl}?$

The five successive I.P of element $\mathrm{x}$ are $7.1,14,29.3,113.7 \& 142.9\mathrm{eV}$ respectively then the formula of its chloride will be :-

Ionisation energy of element $\mathrm{A}$ are :-

$\begin{array}{llll}{\mathrm{IE}}_1& {\mathrm{IE}}_2& {\mathrm{IE}}_3& \\ 120& 430& 540& \mathrm{kJ}/\mathrm{mol}\end{array}$

If $\mathrm{A}$ react with different elements, which compounds of $\mathrm{A}$ is not possible?