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 |
Isostructural pair among the following is:
1.
2.
3.
4.
The bond order of 1.5 is shown by:
1. | \(O^+_2\) | 2. | \(O^-_2\) |
3. | \(O^{2-}_2\) | 4. | \(O_2\) |
Identify the wrong statement among the following.
1. | Amongst isoelectronic species, the smaller the positive charge on the cation, the smaller is the ionic radius |
2. | Amongst isoelectronic species, the greater the negative charge on the anion, the larger is ionic radius |
3. | Atomic radius of the elements increases as one moves down the first group of the periodic table |
4. | Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the periodic table |
Which of the following species contains three bond pairs and one lone pair around the central atom?
1.
2.
3.
4.
The pair of species with the same bond order is:
1.
2.
3. NO, CO
4.
Which of the two ions from the list given below have the geometry that is explained by the same hybridisation of orbitals, ?
1.
2.
3.
4.