MCQ
Which of the following has the smallest size
- A$N{a^ + }$
- ✓$M{g^{ + 2}}$
- C$C{l^ - }$
- D${F^ - }$
✓
Answer
Correct option: B.
$M{g^{ + 2}}$
b
(b)As the nuclear charge per ${e^ - }$ is maximum in $M{g^{ + 2}}$, it has smallest size among $N{a^ + },\,\,M{g^{ + 2}},\,\,C{l^ - }$ and ${F^ - }$.
(b)As the nuclear charge per ${e^ - }$ is maximum in $M{g^{ + 2}}$, it has smallest size among $N{a^ + },\,\,M{g^{ + 2}},\,\,C{l^ - }$ and ${F^ - }$.
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
Which of the following is not used to distinguish ethene from ethane
Following compound contains how many chiral centres
On increasing the pressure, in which direction will the gas phase reaction proceed to re $-$ establish equilibrium, is predicted by applying the Le Chatelier’s principle. Consider the reaction.
$\text{N}_2\text{(g)}+\text{3H}_2\text{(g)}\rightleftharpoons\text{2NH}_3\text{(g)}$
Which of the following is correct, if the total pressure at which the equilibrium is established, is increased without changing the temperature?
→$\text{N}_2\text{(g)}+\text{3H}_2\text{(g)}\rightleftharpoons\text{2NH}_3\text{(g)}$
Which of the following is correct, if the total pressure at which the equilibrium is established, is increased without changing the temperature?
For the allotropic change represented by equation $C(diamond) \to C(graphite)$; the enthalpy change is $\Delta H = - 1.89\,kJ$. If $6\,g$ of diamond and $6\,g$ of graphite are separately burnt to yield carbon dioxide, the heat liberated in the first case is
→Which of the following does not show geometrical isomerism ?
In dilute alkaline solution, $MnO_4\,^-$ changes to
→When a chemical bond is formed, there is decrease in :
Be shows diagonal relationship with :
Chemical equilibrium is dynamic in nature because
In the given reaction,
$
CH_2=CH_2(g)+H_2(g) \rightarrow CH_3-CH_3(g)
$
ethene undergoes
→$
CH_2=CH_2(g)+H_2(g) \rightarrow CH_3-CH_3(g)
$
ethene undergoes