The relationship between first, second and third ionisation entha… - Vidyadip

MCQ

The relationship between first, second and third ionisation enthalpies of each group$-13$ element is:

A
$\Delta_\text{i}\text{H}_\text{1}>\Delta_\text{i}\text{H}_2>\Delta_\text{i}\text{H}_3$
✓
$\Delta_\text{i}\text{H}_\text{1}<\Delta_\text{i}\text{H}_2<\Delta_\text{i}\text{H}_3$
C
$\Delta_\text{i}\text{H}_1=\Delta_\text{i}\text{H}_2=\Delta_\text{i}\text{H}_3$
D
$\Delta_\text{i}\text{H}_3<\Delta_\text{i}\text{H}_1<\Delta_\text{i}\text{H}_2$

✓

Answer

Correct option: B.

$\Delta_\text{i}\text{H}_\text{1}<\Delta_\text{i}\text{H}_2<\Delta_\text{i}\text{H}_3$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from The p-Block Elements→The p-Block Elements — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The reason for exceptionally high boiling point of water is

Find the value of enthaly of formation of $PCl_5 \,:$ Given

$\frac{1}{2}\,{P_4}(s)\,\, + \,\,3C{l_2}(g)\, \to \,2PC{l_3}(\ell )\,\,\,\,\,\Delta H\, = \, - \,635\,\,kJ$

$PCl_3 (\ell )\,+\,Cl_2(g)\,\to \,PCl_5(s) \,\,\,\,\Delta H\, =\, -\,137\,kJ$.....$kJ$

The total heat content of a system is :

Number of moles of methane required to produce $22 \mathrm{~g} \mathrm{CO}_{2(\mathrm{~g})}$ after combustion is $\mathrm{x} \times 10^{-2}$ moles. The value of $\mathrm{x}$ is

$2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{SO}_{3}(\mathrm{~g})$

In an equilibrium mixture, the partial pressures are

$P_{S O_{3}}=43\,\mathrm{kPa} ; \quad P_{O_{2}}=530 \,\mathrm{~Pa}$ and

$\mathrm{P}_{\mathrm{SO}_{2}}=45\, \mathrm{kPa}$ The equilibrium constant $\mathrm{K}_{\mathrm{p}}=......\times 10^{-2} .$ (Nearest integer)

$Si_2O_7^{-6}$ anion is obtained when

Rank the following in the increasing order of rate of reaction with $HBr$

A $400\, mg$ iron capsule contains $100\, mg$ of ferrous fumarate, ${(CHCOO)_2}Fe$. The percentage of iron pasent in it is approximately ........... $\%$

The enthalpies of all elements in their standard states are :

The characteristic oxidation number of atoms in free metals is