Download App

3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
Which has the highest second ionisation potential
  • A
    Nitrogen
  • B
    Carbon
  • ✓
    Oxygen
  • D
    Fluorine
✓

Answer

Correct option: C.
Oxygen
c
(c) In second transition electron is to be removed from half filled orbital.

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 3. Classification of elements and periodicity in properties→3. Classification of elements and periodicity in properties — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

If first orbit energy of $H{e^ + }$ is $-54.4 \,eV$, then the second orbit energy will be ............. $\mathrm{eV}$
→
Molecules in which all fluorine atoms are in same plane is
→
Some inert gas is added at constant volume to the following reaction at equilibrium

$N{H_4}HS(s) \rightleftharpoons N{H_3}(g) + H_2S(g)$

Predict the effect of adding the inert gas

→
Among the structures given below which one is not the correct structure of $N_3^-$ ?
→
Reaction between $NaCl$ and $AgNO_3$ can supressed by
→
Which of the following is most stable canonical structure among all
→
$0.1$ $mole$ of ${N_2}{O_{4(g)}}$ was sealed in a tube under one atmospheric conditions at $25\,^oC$. Calculate the number of moles of $N{O_{2(g)}}$ present, if the equilibrium ${N_2}{O_{4(g)}}$ $\rightleftharpoons$ $2N{O_{2(g)}}$ $({K_p} = 0.14)$ is reached after some time
→
In the reaction of $p-$ chlorotoluene with $KNH_2$ in liquid $NH_3,$ the major product is :
→
In which of the following processes entropy increases?

$A$. A liquid evaporates to vapour.

$B$. Temperature of a crystalline solid lowered from $130 \mathrm{~K}$ to $0 \mathrm{~K}$.

$C$. $2 \mathrm{NaHCO}_{3(\mathrm{~s})} \rightarrow \mathrm{Na}_2 \mathrm{CO}_{3(\mathrm{~s})}+\mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}$

$D$. $\mathrm{Cl}_{2(g)} \rightarrow 2 \mathrm{Cl}_{(g)}$

Choose the correct answer from the options given below:

→
$\mathop {C{H_2}}\limits_{(I)}  = O \leftrightarrow \mathop {{}^ \oplus C{H_2}}\limits_{(II)}  - {O^\circleddash } \leftrightarrow \mathop {{}^\circleddash C{H_2}}\limits_{(III)}  - {O^ \oplus }$

Which of these structures is practically not a valid canonical structure for formaldehyde ?

→