MCQ
Which one of the following elements has the highest ionisation energy
- A$Na$
- B$Mg$
- C$C$
- ✓$F$
✓
Answer
Correct option: D.
$F$
d
(d) It has maximum no. of ${e^ - }$ in outermost shell. So it has maximum $I.E.$
(d) It has maximum no. of ${e^ - }$ in outermost shell. So it has maximum $I.E.$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Etherates are
Identify the reagent(s) $'A'$ and condition(s) for the reaction :
→In the following sets of reactants which two sets best exhibit the amphoteric characters of $Al_2O_3. xH_2O$ ?
→Set $1$: $Al_2O_3 .xH_2O\, (s)$ and $OH^-(aq)$
Set $2$: $Al_2O_3 .xH_2O\, (s)$ and $H_2O\,(l)$
Set $3$: $Al_2O_3 .xH_2O\, (s)$ and $H^+(aq)$
Set $4$: $Al_2O_3 .xH_2O\, (s)$ and $NH_3(aq)$
The values of $\Delta H$ for the combustion of ethene and ethyne are $-341.1$ and $-310.0\,kcal$ respectively. Which of the following is a better fuel
→The correct order of dipole moment is
There is no $S-S$ bond in
→Which reaction will give $\begin{array}{*{20}{c}}
{C{H_3} - CH - CH - C{H_2}} \\
{\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,} \\
{\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}\,\,\,\,\,\,\,\,OH\,\,\,\,\,\,\,H\,\,}
\end{array}$ as a major product
→{C{H_3} - CH - CH - C{H_2}} \\
{\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,} \\
{\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}\,\,\,\,\,\,\,\,OH\,\,\,\,\,\,\,H\,\,}
\end{array}$ as a major product
${H_3}B{O_3}\,\xrightarrow{{{T_1}}}X\,\xrightarrow{{{T_2}}}Y\,\xrightarrow{{\operatorname{Re} d\,\,\,hot}}{B_2}{O_3}$
→if $T_1 < T_2$ then $X$ and $Y$ respectively are
Which of the following is most reactive for nucleophilic substitution reaction ?
Correct order of polarising power is