Multiple Choice QuestionsInoic bonds are usually formed by combination of elements with
high ionisation potential and low electron affinity
low ionisation potential and high electron affinity
high ionisation potential and high electron affinity
low ionisation potential and low electron affinity
If a molecule MX3 has zero dipole moment, the sigma bonding orbital used by M (At. no. 13) are
pure p
sp- hybridised
sp2- hybridised
sp3- hybridised
The number of sp3-hybridised carbon atoms in cyclohexene are
2
3
4
6
C.
4
Number of molecular hybrid orbital = number of σ bons + number of lone pair of electrons.
| Number of molecular hybrid orbitals | Hybridisation |
| 2 | sp |
| 3 | sp2 |
| 4 | sp3 |
C-1 and C-2 carbon have three molecular hybrid orbitals. Hence, the hybridisation of C-1 and C-2 are sp2.
C-3, C-4, C-5 and C-6 have four molecular hybrid orbitals. Hence the hybridisation of C-3, C-4, C-5 and C-6 are sp3.
If the value of bond order is zero, then
molecule will be stable
molecule will be unstable
molecule will be in ionic state
None of the above
Which of the following is a proper match?
| Shape | |
| A. 0.115 - 0.225 | i. Triangular |
| B. 0.225 - 0.414 | ii. Tetrahedral |
| C. 0.414 - 0.732 | iii. Cubic |
| D. 0.732 - 1 | iv. Octahedral |
A - i; B - ii; C - iv; D - iii
A - iii; B - ii; C - iv; D - i
A - i; B - iii; C - ii; D - iv
A - ii; B - iv; C - i; D - iii
According to MOT which of the following is correct for potassium hexa cyano ferrate (III)?
It is octahedral complex.
t2g orbital contains the e- of metal.
For iron, overlapping between empty orbitals and ligand orbitals takes place.
All of the above
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