In a regular octahedral molecule MX6, the number of X-M-X bonds at 180is-
1. 3
2. 2
3. 6
4. 4
Which of the following is not isostructural with SiCl4?
1. SCl4
2. SO42-
3. PO43-
4. NH4+
In which of the following species the central atom has the type of hybridisation which is not the same as that present in the other three ?
1. SF4
2.
3.
4. PCl5
In BrF3 molecule, the lone pairs occupy equatorial positions to minimize:
1. | Lone pair-bond pair repulsion. |
2. | Bond pair-bond pair repulsion. |
3. | Lone pair-lone pair repulsion and lone pair-bond pair repulsion. |
4. | Lone pair-lone pair repulsion. |
In which one of the following molecules, the central atom said to adopt sp2 hybridisation ?
1. BeF2
2. BF3
3. C2H2
4. NH3
According to molecular orbital theory which of the following lists rank the nitrogen species in terms of increasing bond order ?
1.
2.
3.
4.
Among the following molecules/ions BF3, NO2-, NH2- , and H2O, the central atom is sp2 hybridized in :
1. NO2- and NH2-
2. NH2- and H2O
3. NO2- and H2O
4. BF3 and NO2-
Which one of the following is planar ?
1. XeF4
2. XeO4
3. XeO3
4. XeO3F2