Correct Lewis structure of the nitrite ion, \(NO_{2}^{-}\) among the following is:
1. | 2. | ||
3. | 4. | None of the above |
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). |
The incorrect statements among the following are-
(a) | NaCl being an ionic compound is a good conductor of electricity in the solid-state |
(b) | In canonical structure, there is a difference in the arrangement of atoms |
(c) | Hybrid orbitals form stronger bonds than pure orbitals |
(d) | VSEPR theory can explain the square planar geometry of XeF4 |
1. (a) and (b) only
2. (b) and (c) only
3. (c) and (d) only
4. (b) and (d) only
In NO3– ion, the number of bond pair and lone pair of electrons on nitrogen atom are respectively:
1. | 2, 2 | 2. | 3, 1 |
3. | 1, 3 | 4. | 4, 0 |
In a regular octahedral molecule, MX6, the number of X–M–X bonds at 180º is:
1. | Two | 2. | Six |
3. | Four | 4. | Three |
In , formal charge on every oxygen atom and P-O bond order respectively are:
1. -0.75 and 1.25
2. -0.5 and 2
3. 1 and 1.5
4. -0.75 and 2
From the perspective of molecular orbital theory, which statement is false?
1. is not a stable molecule.
2. is not stable but is expected to exist.
3. Bond strength of is maximum amongst the homonuclear diatomic molecules belonging to the second period.
4. The order of energies of molecular orbitals in molecule is: