MCQ
Which combination forms strongest ionic bond
- A$Ca^{+2}, Cl^-$
- B$K^+, O^{-2}$
- C$K^+, Cl^-$
- ✓$Ca^{+2}, O^{-2}$
✓
Answer
Correct option: D.
$Ca^{+2}, O^{-2}$
d
Ionic bond strength depends on two things :
Ionic bond strength depends on two things :
$a)$ Ionic charge - the greater the product of the ionic charges. the stronger the bond.
$b)$ Ionic size - the lower the sum of the anion and cation radii, the stronger the bond.
$Ca ^{+2}$ and $O ^{-2}$ ions have smaller sizes and more charges compared to the rest. They will form a stronger ionic bond.
Therefore, the correct option is $D.$
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
Major product $(B)$ of this reaction is
→The number of tertiary carbon atoms in the compound ${(C{H_3})_2}CHC{H_2}C\;{(C{H_3})_3}$is
→Which of the following is not tetrahedral
Electromagnetic radiatiations of frequency $‘ \nu ’$ consists of a stream of particles called photons. Which of the following statements is / are true about photons :
→The ionization potential of sodium is $5.48\, eV.$ The $I.P.$ of potassium is ............. $\mathrm{eV}$
→Match List $I$ with List $II$
→| List-$I$ (Compound) | List-$II$ (Colour) |
| $A$ $\mathrm{Fe}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]_3 \cdot \mathrm{xH}_2 \mathrm{O}$ | $I$ Violet |
| $B$ $\left[\mathrm{Fe}(\mathrm{CN})_5 \mathrm{NOS}\right]^{4-}$ | $II$ Blood Red |
| $C$ $[\mathrm{Fe}(\mathrm{SCN})]^{2+}$ | $III$ Prussian Blue |
| $D$ $\left(\mathrm{NH}_4\right)_3 \mathrm{PO}_4 \cdot 12 \mathrm{MoO}_3$ | $IV$ Yellow |
Choose the correct answer from the options given below :
Strongest nucleophile is
If for ${H_2}_{(g)} + \frac{1}{2}{S_{2(S)}}$ $\rightleftharpoons$ ${H_2}{S_{(g)}}$ and ${H_{2(g)}} + B{r_{2(g)}}$ $\rightleftharpoons$ $2HB{r_{(g)}}$The equilibrium constants are $K_1$ and $K_2$ respectively, the reaction$B{r_2}_{(g)} + {H_2}{S_{(g)}}$ $\rightleftharpoons$ $2HB{r_{(g)}} + \frac{1}{2}{S_{2(S)}}$ would have equilibrium constant
→$1000\, mL$ $1\, M$ $CuSO_4(aq)$ is electrolysed by $9.65\, amp$ current for $100\, sec$ using $Pt-$ electrode. Which is incorrect statemenet?
→Which of the following are not aromatic