The number of bonds and bonds in the following structure is :
1. 6, 19
2. 4, 20
3. 5, 19
4. 5, 20
The electronic configurations of three elements, A, B, and C are given below.
A 1s2 2s2 2p6
B 1s2 2s2 2p6 3s2 3p3
C 1s2 2s2 2p6 3s2 3p5
The molecular formula of the compound formed from B and C will be
1.
2.
3.
4.
Match the items given in Column I with examples given in Column II.
Column I |
Column II |
A. Hydrogen bond |
1. C |
B. Resonance |
2. LiF |
C. Ionic solid |
3. H2 |
D. Covalent solid |
4. HF |
5. O3 |
Codes
Options: | A | B | C | D |
1. | 2 | 3 | 4 | 1 |
2. | 1 | 2 | 3 | 5 |
3. | 5 | 4 | 3 | 2 |
4. | 4 | 5 | 2 | 1 |
Among the following, the correct statements about
a. |
The hybridisation of the central atom is sp3 |
b. |
Its resonance structure has one C-O single bond and two C=O double bonds |
c. |
The average formal charge on each oxygen atom is 0.67 units |
d. |
All C-O bond lengths are equal |
Choose the correct option
1. (a), (b)
2. (b), (c)
3. (c), (d)
4. (b), (d)
The incorrect statements among the following are-
1. | NaCl being an ionic compound is a good conductor of electricity in the solid-state |
2. | In canonical structure, there is a difference in the arrangement of atoms |
3. | Hybrid orbitals form stronger bonds than pure orbitals |
4. | VSEPR theory can explain the square planar geometry of XeF4 |
1. (a), (b)
2. (b), (c)
3. (c), (d)
4. (b), (d)