Which of the following pairs of ions are isoelectronic and isostructural?
1.
2.
3.
4.
Choose the compound which has a maximum bond angle at nitrogen among the following:
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 one of the following species has a plane triangular shape?
1. | - | 2. | |
3. | - | 4. |
An electron-deficient compound among the following is:
1. | (SiH3)2 | 2. | (BH3)2 |
3. | PH3 | 4. | (CH3)2 |
Which of the following is a polar molecule?
1. | SF4 | 2. | SiF4 |
3. | XeF4 | 4. | BF3 |
A paramagnetic molecule among the following is:
1. | O2– | 2. | CN– |
3. | NO+ | 4. | CO |
The bond order of 1.5 is shown by:
1. | \(O^+_2\) | 2. | \(O^-_2\) |
3. | \(O^{2-}_2\) | 4. | \(O_2\) |