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
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
Equilateral shape has
1. sp hybridisation
2. sp2 hybridisation
3. sp3 hybridisation
4. dsp2 hybridisation
The types of hybrid orbitals of nitrogen in NO2+, NO3- and NH4+ respectively are expected to be
1. sp, sp3 and sp2
2. sp, sp2 and sp3
3. sp2, sp and sp3
4. sp2, sp3 and sp