An electron-deficient compound among the following is:
1. | (SiH3)2 | 2. | (BH3)2 |
3. | PH3 | 4. | (CH3)2 |
A paramagnetic molecule among the following is:
1. | O2– | 2. | CN– |
3. | NO+ | 4. | CO |
Which of the following species has a bond angle of \(120^\circ\)?
1. \(\mathrm{{SF}_6}\)
2. \(\mathrm{NCl_3}\)
3. \(\mathrm{BCl_3}\)
4. \(\mathrm{PH_3}\)
Most covalent compound among the following is :
1. | AlF3 | 2. | AlCl3 |
3. | AlBr3 | 4. | AlI3 |
Which of the following is a paramagnetic compound?
1.
2.
3.
4.
The correct order of acidic strength is :
1.
2.
3.
4.
The molecule having the smallest bond angle is-
1. | PCl3 | 2. | NCl3 |
3. | AsCl3 | 4. | SbCl3 |
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 \(I_2\) |
The shape of is:
1. | Trigonal planar | 2. | Pyramidal |
3. | Bent T-shape | 4. | See-saw |
The total number of possible resonance forms for the nitrate ion, () is:
1. | 1 | 2. | 2 |
3. | 3 | 4. | 4 |