MCQ
For $Li^{+2}$ ion, $r_2 : r_5$ will be
- A$9 : 25$
- ✓$4 : 25$
- C$25 : 4$
- D$25 : 9$
✓
Answer
Correct option: B.
$4 : 25$
b
$\frac{{{r_2}}}{{{r_5}}} = \frac{{{{(2)}^2}}}{{{{(5)}^2}}} = \frac{4}{{25}}$
$\frac{{{r_2}}}{{{r_5}}} = \frac{{{{(2)}^2}}}{{{{(5)}^2}}} = \frac{4}{{25}}$
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
All gases have the same number of moles in the same volume at constant $T$ and $P$ is stated by :
→Choose the statement that besi: describes given compounds
Which one of the following is covalent molecule
The correct match between item $I$ and item $II$ is
→| Item $I$ | Item $II$ |
| $(a)$ Benzaldehyde | $(p)$ Mobile phase |
| $(b)$ Alumina | $(q)$ Adsorbent |
| $(c)$ Acetonitrile | $(r)$ Adsorbate |
The following data are obtained when dinitrogen and dioxygen react together to form different compounds
→| Mass of dinitrogen | Mass of dioxygen |
| $14\, g$ | $16\, g$ |
| $14\, g$ | $32\, g$ |
| $28\, g$ | $32\, g$ |
| $28\, g$ | $80\, g$ |
Which law of chemical combination is obeyed by the above experimental data ?
The compound that is most reactive towards electrophilic nitration is
$\,$
→Give the number of electrons in the species, $O _2$ and $O _2{ }^{+}$.
→The acid that results when a base accepts a proton is called
The product obtained on reaction of ${C_2}{H_5}Cl$ with hydrogen over palladium carbon is
→