Assertion (A): | Zn(ll) salts are diamagnetic. |
Reason (R): | Zn2+ ion has one unpaired electron. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
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 |
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) |
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 |