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
1. | The H-O-H bond angle in H2O is larger than the H-C-H bond angle in CH4 |
2. | The H-C-H bond angle in CH4 is larger than the H-N-H bond angle in NH3 |
3. | The H-C-H bond angle in CH4, the H-N-H bond angle in NH3 and the H-0-H bond angle in H2O are all greater than 90o |
4. | The H-O-H bond angle in H2O is smaller than the H-N-H bond angle in NH3 |
The correct order of ionic character among CaH2, BeH2 and BaH2 is:
1.
2.
3.
4.
In which of the following molecules, all atoms are coplanar?
1. | 2. | ||
3. | 4. |
Which of the following pairs of species have the same bond order?
1.
2.
3.
2. CO, NO
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. \(\mathrm{I_{3}^{+}}\)
Pair of ions among the following that are isoelectronic and isostructural:
1.
2.
3.
4.
The hybridisations of atomic orbitals of nitrogen in NO+, \(N O_3^{-}\) and NH3 respectively are:
1.
2.
3.
4.