Chemical Bonding and Molecular Structure

Identify the incorrect statement about PCl5.

1. PCl5 possesses two different Cl-P-Cl bond angles
2. All five P-Cl bonds are identical in length
3. PCl5 exhibits sp3d hybridisation
4. PCl5 consists of five P-Cl (sigma) bonds

Match List-I with List-II: Choose the correct answer from the options given below:

1. A-III, B-IV, C-I, D-II
2. A-IV, B-I, C-III, D-II
3. A-IV, B-III, C-II, D-I
4. A-IV, B-III, C-I, D-II

Amongst the following, the total number of species NOT having eight electrons around central atom in its outermost shell, is NH3, AlCl3, BeCl2, CCl4, PCl5

1. 2
2. 4
3. 1
4. 3

The correct order of energies of molecular orbitals of N2 molecule, is

1. 1s < 1s < 2s < 2s < 2pz < ( 2px = 2py) < ( 2px = 2py) < 2pz
2. 1s < 1s < 2s < 2s < 2pz < 2pz < ( 2px = 2py) < ( 2px = 2py)
3. 1s < 1s < 2s < 2s < ( 2px = 2py) < ( 2px = 2py) < 2pz < 2pz
4. 1s < 1s < 2s < 2s < ( 2px = 2py) < 2pz < ( 2px = 2py) < 2pz

Amongst the following which one will have maximum 'lone pair - lone pair' electron repulsions?

1. ClF3
2. IF5
3. SF4
4. XeF2

Which amongst the following is incorrect statement?

1. The bond orders of O2+, O2, O2- and O22- are 2.5, 2, 1.5 and 1, respectively
2. C2 molecule has four electrons in its two degenerate molecular orbitals
3. H2+ ion has one electron
4. O2+ ion is diamagnetic

Match List-I with List-II : Choose the correct answer from the options given below :

1. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
2. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
3. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
4. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

The correct order of bond angles in the following compounds/species is :

1. CO2 < NH3 < H2O < +NH4
2. H2O < NH3 < +NH4 < CO2
3. H2O < +NH4 < NH3 < CO2
4. H2O < +NH4 = NH3 < CO2

BF3 is planar and electron deficient compound. Hybridization and number of electrons around the central atom, respectively are :

1. sp2 and 8
2. sp3 and 4
3. sp3 and 6
4. sp2 and 6

Match List - I with List - II : Choose the correct answer from the options given below.

1. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
2. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
3. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
4. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)