A. | \(\mathrm{H}_2 \mathrm{O}>\mathrm{NH}_3>\mathrm{CHCl}_3 -\text { }\)dipole moment |
B. | \(\mathrm{XeF}_4>\mathrm{XeO}_3>\mathrm{XeF}_2-\text { }\)number of lone pairs on central atom |
C. | \(\mathrm{O}-\mathrm{H}>\mathrm{C}-\mathrm{H}>\mathrm{N}-\mathrm{O}-\text { }\) bond length |
D. | \(\mathrm{N}_2>\mathrm{O}_2>\mathrm{H}_2 \text { } -\) bond enthalpy |
1. | BF3 has non-zero dipole moment. |
2. | The dipole moment of NF3 is greater than that of NH3. |
3. | Three canonical forms can be drawn for \(\text{CO}_3^{2-}\) ion. |
4. | Three resonance structures can be drawn for ozone. |
1. | \(\mathrm{CCl_4}\) | 2. | \(\mathrm{HI}\) |
3. | \(\mathrm{CO_2}\) | 4. | \(\mathrm{BF}_3\) |
1. | \(CH_4>H_2S>NH_3>HF \) |
2. | \(H_2S>NH_3>HF>CH_4 \) |
3. | \(NH_3>HF>CH_4>H_2~S \) |
4. | \(HF>NH_3>H_2S>CH_4\) |
Which molecule among the following is non-polar?
1. | SbCl5 | 2. | NO2 |
3. | POCl3 | 4. | CH2O |
Which of the following set of molecules will have zero dipole moment?
1. | Boron trifluoride, hydrogen fluoride, carbon dioxide, 1 3-dichlorobenzene |
2. | Nitrogen trifluoride, beryllium difluoride, water, 1 3 -dichlorobenzene |
3. | Boron trifluoride, beryllium difluoride, carbon dioxide, 1 4-dichlorobenzene |
4. | Ammonia, beryllium difluoride, water, 1, 4-dichlorobenzene |
Arrange the following species in increasing order of their dipole moments:
NH3,NF3,BF3,H2O
1.
2.
3.
4.
The correct order of ionic character among CaH2, BeH2 and BaH2 is:
1.
2.
3.
4.
A molecule among the following that has the maximum dipole moment is:
1. | \(\mathrm{CO_2}\) | 2. | \(\mathrm{CH_4}\) |
3. | \(\mathrm{NH_3}\) | 4. | \(\mathrm{NF_3}\) |
Which of the following is a polar molecule?
1. | SF4 | 2. | SiF4 |
3. | XeF4 | 4. | BF3 |