Covalent Bond vs Ionic Bond

Q. The bonds present in $N_2{O}_5$ are:

1. Ionic only
2. Covalent and coordinate
3. Covalent only

4. Covalent and ionic

Q. Which of the following factors affects the hydration energy of an ion?

1. Hydration energy depends on charge of the ion
2. Hydration energy depends on the ionic radii
3. Hydration energy depends on the mass of the ion
4. Both A and B

Q. Which of the following is arranged in the increasing order of hydration energy?

1. $C{u}^{2+}<F{e}^{3+}<F{e}^{2+}<A{l}^{3+}$
2. $F{e}^{2+}<C{u}^{2+}<F{e}^{3+}$< $A{l}^{3+}$
3. $A{l}^{3+}<F{e}^{3+}<F{e}^{2+}<C{u}^{2+}$
4. $F{e}^{3+}<A{l}^{3+}<C{u}^{2+}<F{e}^{2+}$

Q. Which of the following pairs is not the correct order of lattice energy?

1. $KCl>MgO$
2. $AlN>MgO$
3. $CaO>BaO$
4. $MgC{O}_3>CaC{O}_3$

Q.

What do you mean by bonding molecular orbital?

Q.

Mention the condition favoring ionic bond formation.

Q.

In calcium fluoride, ___________ bond formation takes place between calcium and fluorine.

Q. Which of the following is an ionic compound?

1. $S{O}_3$
2. $ICl$
3. $KI$
4. $CHC{l}_3$

Q. In which of the following species bonds are non-directional?

1. $NC{l}_3$
2. $RbCl$
3. $BeC{l}_2$
4. $BC{l}_3$

Q.

Is hydrogen bonding stronger than ion-dipole?

Q. The hydration energy of:

1. $B{e}^{2+}>N{a}^{+}$
2. $B{e}^{2+}<N{a}^{+}$
3. $B{e}^{2+}=N{a}^{+}$
4. None of the above

Q.

Do bonding molecular orbitals have nodes?

Q. Predict the correct order of mobility of $B{e}^{2+}$, $M{g}^{2+},$ $S{r}^{2+}$ and $C{a}^{2+}$ions in aqueous medium.

1. $B{e}^{2+}$>$M{g}^{2+}$ > $C{a}^{2+}$> $S{r}^{2+}$
2. $B{e}^{2+}$< $M{g}^{2+}$ < $C{a}^{2+}$< $S{r}^{2+}$
3. $B{e}^{2+}$> $M{g}^{2+}$ >$S{r}^{2+}$> $C{a}^{2+}$
4. $M{g}^{2+}$< $B{e}^{2+}$< $S{r}^{2+}$< $C{a}^{2+}$

Q.

What factors result in a stronger ionic bond?

Q.

Which is the correct increasing order of covalent character?

1. $\mathrm{KCl}<{\mathrm{CaCl}}_2<{\mathrm{AlCl}}_3<{\mathrm{SiCl}}_4$

2. ${\mathrm{AlCl}}_3<{\mathrm{CaCl}}_2<\mathrm{KCl}<{\mathrm{SiCl}}_4$

3. None of these

Q. Which of the following molecules has a non-polar covalent bond?

1. $HCl$
2. $NaCl$
3. $C{l}_2$
4. $KCl$

Q.

Is AgCl ionic?

Q. Covalent hydrides among $Ca{H}_2,N{H}_3,NaHand{B}_2{H}_6$ are _____

1. $N{H}_{3}and{B}_2{H}_6$
2. $NaHandCa{H}_2$
3. $NaHandN{H}_3$
4. $Ca{H}_{2}and{B}_2{H}_6$

Q. Anhydrous $AlC{l}_3$ is covalent from the data given below predict whether it would remain covalent or ionic in aqueous solution.
$\text{Ionization energy for}AlC{l}_3=5137kJmo{l}^{-1}$
$\Delta H_{\text{hydration}}$ for $A{l}^{+3}=-4665kJmo{l}^{-1}$.
$\Delta H_{\text{hydration}}$ for $C{l}^{-}$ = -381 $kJmo{l}^{-1}$

1. Ionic
2. Covalent
3. Cannot be predicted
4. None of the above

Q. The enhanced force of cohesion in metals is due to :

1. The covalent linkages between atoms
2. The electrovalent linkages between atoms
3. The lack of exchange of valency electrons
4. The delocalization of valence electron between metallic kernels

Q. An element A has an outer electronic configuration $2s^{2}2p^4$. The number of covalent bonds in $A_2$ is:

1. 1
2. 2
3. 3
4. 4

Q. Cations and anions combine in a crystal to form which type of a compound?

1. Ionic
2. Metallic
3. Covalent
4. Dipole-dipole

Q. Which one of the following alkali metal chlorides has the highest melting point?

1. $KCl$
2. $RbCl$
3. $CsCl$
4. $NaCl$

Q. Which compound possesses the greatest lattice energy?

1. $LiBr$
2. $LiCl$
3. $LiI$
4. $LiF$

Q. In which of the following species are the bonds non-directional?

1. $NC{l}_3$
2. $RbCl$
3. $BeC{l}_2$
4. $BC{l}_3$

Q. The number of ionic, covalent and coordinate bonds in $N{H}_{4}Cl$ are respectively

1. 1, 3 and 1
2. 1, 3 and 2
3. 1, 2 and 2
4. 1, 1 and 3

Q.

By giving at least two examples, define the following bindings:

Covalent bonding

Q. Which contains both covalent and ionic bonds?

1. $CC{l}_4$
2. $KCN$
3. $CaC{l}_2$
4. $H_{2}O$

Q. Predict the correct order of mobility of $B{e}^{2+}$, $M{g}^{2+},$ $S{r}^{2+}$ and $C{a}^{2+}$ions in aqueous medium.

1. $B{e}^{2+}$>$M{g}^{2+}$ > $C{a}^{2+}$> $S{r}^{2+}$
2. $B{e}^{2+}$< $M{g}^{2+}$ < $C{a}^{2+}$< $S{r}^{2+}$
3. $B{e}^{2+}$> $M{g}^{2+}$ >$S{r}^{2+}$> $C{a}^{2+}$
4. $M{g}^{2+}$< $B{e}^{2+}$< $S{r}^{2+}$< $C{a}^{2+}$

Q. If $N{a}^{+}$ is larger than $M{g}^{2+}$ ion and $S^{2-}$ ion is larger than $C{l}^{-}$ ion, which of the following will be the least soluble in water?

1. $NaCl$
2. $N{a}_{2}S$
3. $MgC{l}_2$
4. $MgS$