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. \(\mathrm{PH_3}\)
The hybridisations of atomic orbitals of nitrogen in NO+, \(N O_3^{-}\) and NH3 respectively are:
1.
2.
3.
4.
Pair of ions among the following that are isoelectronic and isostructural:
1.
2.
3.
4.
Which of the following is the incorrect statement?
1. PH5 and BiCl5 do not exist
2. pπ - dπ bonds are present in SO2
3. SeF4 and CH4 have the same shape
4. \(\mathrm{I_{3}^{+}}\)
Which of the following pairs of species have the same bond order?
1.
2.
3.
2. CO, NO
In which of the following molecules, all atoms are coplanar?
1. | 2. | ||
3. | 4. |
The correct order of ionic character among CaH2, BeH2 and BaH2 is:
1.
2.
3.
4.
1. | NO | 2. | CN– |
3. | CN+ | 4. | CN |
Mark the correct order of repulsion among the following according to the VSEPR theory.
1. | lone pair-lone pair > bond pair-bond pair >lone pair-bond pair |
2. | bond pair-bond pair> lone pair-bond pair>lone pair-lone pair |
3. | lone pair-bond pair > bond pair-bond pair >lone pair-lone pair |
4. | lone pair-lone pair> lone pair-bond pair>bond pair-bond pair |
In which orbital is the pair of electrons located in the provided carbanion, CH3C≡C– ?
1. sp3
2. sp2
3. sp
4. 2p