The decreasing order of ionic character of the N-H, F-H, C-H, and O-H, is :
1. | N-H > F-H > C-H > O-H |
2. | F-H > N-H > C-H > O-H |
3. | O-H > C-H > F-H > N-H |
4. | F-H > O-H > N-H > C-H |
The favourable factors for the formation of an ionic bond would be:
1. | Low ionization enthalpy, High negative electron gain enthalpy, High lattice energy. |
2. | High ionization enthalpy, High electron gain enthalpy, High lattice energy. |
3. | Low ionization enthalpy, Low electron gain enthalpy, Low lattice energy. |
4. | High ionization enthalpy, Low electron gain enthalpy, High lattice energy. |
Which of the following pair of elements can form an ionic compound?
1. | \(\mathrm{Na}\) and \(\mathrm{Ca}\) | 2. | \(\mathrm{K}\) and \(O_2\) |
3. | \(O_2\) and \(Cl_2\) | 4. | \(Al\) and \(I_2\) |