Molecule | Shape or geometry of the molecule |
a. PCl5 | Trigonal |
b. SF6 | Octahedral |
c. BeCl2 | Linear |
d. NH3 | Trigonal pyramidal |
1. | b | 2. | c |
3. | d | 4. | a |
The potential energy (y) curve for H2 formation as a function of internuclear distance (x) of the H atoms is shown below.
The bond energy of H2 is:
1. (b-a)
2.
3.
4. (c-a)
How many (i) sp2 hybridised carbon atoms and (ii) bonds are present in the following compound?
1. 7, 5
2. 8, 6
3. 7, 6
4. 8, 5
Match the coordination number and type of hybridization with the distribution of hybrid orbitals in space based on Valence bond theory.
Coordination number and type of hybridisation | Distribution of hybrid orbitals in space |
(a) 4, sp3 | (i) Trigonal bipyramidal |
(b) 4, dsp2 | (ii) Octahedral |
(c) 5, sp3d | (iii) Tetrahedral |
(d) 6, d2sp3 | (iv) Square planar |
(a) | (b) | (c) | (d) | |
1. | (ii) | (iii) | (iv) | (i) |
2. | (iii) | (iv) | (i) | (ii) |
3. | (iv) | (i) | (ii) | (iii) |
4. | (iii) | (i) | (iv) | (ii) |
Which of the compounds depicted below will exhibit a linear structure?
1. NO2
2. HOCl
3. O3
4. N2O
BF3 is a planar and an electron deficient compound. Hybridization and number of electrons around the central atom, respectively are:
1. | sp2 and 6 | 2. | sp2 and 8 |
3. | sp3 and 4 | 4. | sp3 and 6 |
Match List - I with List - II
List - I | List - II | ||
(a). | (i). | Square pyramidal | |
(b). | (ii). | Trigonal planar | |
(c). | (iii). | Octahedral | |
(d). | (iv). | Trigonal bipyramidal |
Choose the correct answer from the options given below:
(a). | (b). | (c). | (d). | |
1. | (iii). | (i). | (iv). | (ii). |
2. | (iv). | (iii). | (ii). | (i). |
3. | (iv). | (iii). | (i). | (ii). |
4. | (ii). | (iii). | (iv). | (i). |
Which pair of ions from the following list do not constitute an iso-electronic pair?
1. Mn2+, Fe3+
2. Fe2+, Mn2+
3. O2-, F-
4. Na+, Mg2+
Which molecule among the following is non-polar?
1. | SbCl5 | 2. | NO2 |
3. | POCl3 | 4. | CH2O |