Ionic Bond

Q.

The geometric form of crystals is the result of orderly arrangement of _____

1. Molecules only

2. Atoms only

3. ions only

4. Any of the above

Q.

Which of the following option(s) is/are correct regarding ionic compounds?

1. These are insoluble in water but dissolve in organic solvents.

2. Ionic compounds are volatile.

3. Their constituent particles are molecules

4. Ionic compounds are good conductors of electricity in the fused or aqueous state.

Q.

Most ionic compounds have _____

1. High melting and low boiling points

2. High melting and non-directional bonds

3. High solubilities in polar solvents and low solubilities in non-polar solvents

4. 3D network structures and are good conductors of electricity in molten state

Q.

Formation of chemical bond is accompanied by __________

1. Decrease in energy

2. None of these

3. Increase in energy

4. No change

Q. Formation of chemical bond is accompanied by

1. Decrease in energy
2. Increase in energy
3. No change

Q. The experimental value of dipole moment of $HCl$ is $1.05D$. The length of the $H-Cl$ bond is $1.250A^{\circ }$. The percentage of ionic character in $HCl$ is: (Given, $\frac{2}{3.34}=0.6$)

Q. Sodium sulphate is soluble in water whereas barium sulphate is sparingly soluble because :

1. The hydration energy of barium sulphate is more than its lattice energy
2. The lattice energy of Barium sulphate is more than its hydration energy
3. The lattice energy has no role to play in solubility
4. The hydration energy of sodium sulphate is less than its lattice energy

Q. The ionic bonds $X^{+}{Y}^{-}$ are formed when:

1. Electron affinity of $Y$ is high and ionisation energy of $X$ is low
2. Electron affinity of $Y$ is low and ionisation energy of $X$ is high
3. Lattice energy of $XY$ is low
4. None of these

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. Electronic configuration of some elements are given below:
$L:1s^{2}2s^{2}2p^4$
$Q:1s^{2}2s^{2}2p^{6}3s^{2}3p^5$
$P:1s^{2}2s^{2}2p^6,3s^1$
$R:1s^{2}2s^{2}2p^{6}3s^2$
The ionic compound that can be formed by these elements are:

1. $L_{2}P,RL,PQ$ and $R_{2}Q$
2. $LP,RL,PQ$ and $RQ$
3. $P_{2}L,RL,PQ$ and $R{Q}_2$
4. $LP,R_{2}L,P_{2}Q$ and $RQ$