Select Chapter Topics:
Q. No.The oxo metal anions of the 3d series in which the metal exhibits an oxidation state equal to its group number is /are:
1.
2.
3.
4.
All of these
Subtopic: d-Block Elements- Properties & Uses |
87%
Level 1: 80%+
Hints
The consequence(s) of lanthanoid contraction is/are :
| 1. | Similarity in the properties of second and third transition series. |
| 2. | Separation of lanthanoids is difficult. |
| 3. | Variation in the basic strength of lanthanide hydroxides. |
| 4. | All of the above. |
Subtopic: Lanthanoid & Actinoids Contraction |
84%
Level 1: 80%+
Hints
Links
Which d-block elements are not considered transition elements, and why?
| 1. | Mn, Fe, and Ni because these have partially filled d-subshell. |
| 2. | Mn, Fe, and Ni because these have completely filled d-subshell. |
| 3. | Zn, Cd, and Hg because these have completely filled d-subshell. |
| 4. | Zn, Cd, and Hg because these have partially filled d-subshell. |
Subtopic: d-Block Elements- Properties & Uses |
93%
Level 1: 80%+
Hints
What is the electronic configuration of transition elements?
| 1. | \((n-1) d^{1-10} n s^{0-2} \) | 2. | \((n-1) d^{1-10} n s^2 \) |
| 3. | \(n f^2~ n p^{1-6} \) | 4. | \(n d^2~ n p^{1-6}\) |
Subtopic: d-Block Elements- Properties & Uses |
80%
Level 1: 80%+
Hints
The different oxidation states exhibited by the lanthanoids are:
| 1. | +2, -3, +4 | 2. | -2, -3, -4 |
| 3. | +2, +3, -4 | 4. | +2, +3, +4 |
Subtopic: f-Block Elements- Properties & Uses |
91%
Level 1: 80%+
Hints
Links
The "Disproportionation" reaction means that :
| 1. | A relatively less stable oxidation state undergoes an oxidation−reduction reaction. |
| 2. | A relatively more stable oxidation state undergoes an oxidation−reduction reaction. |
| 3. | A relatively less stable oxidation state undergoes a hydrogenation reaction. |
| 4. | A relatively more stable oxidation state undergoes a hydrogenation reaction. |
Subtopic: d-Block Elements- Properties & Uses |
75%
Level 2: 60%+
Hints
Subtopic: d-Block Elements- Properties & Uses |
75%
Level 2: 60%+
Hints
The number of unpaired electrons in the gaseous ions are, respectively:
| 1. | 3, 2, 3, and 1 | 2. | 2, 2, 3, and 1 |
| 3. | 4, 3, 2, and 1 | 4. | 1, 2, 3, and 4 |
Subtopic: d-Block Elements- Properties & Uses |
89%
Level 1: 80%+
Hints
Subtopic: f-Block Elements- Properties & Uses |
86%
Level 1: 80%+
Hints
Give below are some atomic numbers:
29, 59, 74, 95, 102, 104
The atomic numbers of the inner transition elements among the above are :
| 1. | 29, 59, 74
|
2. | 59, 95, 102
|
| 3. | 95, 102, 104
|
4. | 59, 74, 95 |
Subtopic: f-Block Elements- Properties & Uses |
67%
Level 2: 60%+
Hints
Select Chapter Topics:
© 2025 GoodEd Technologies Pvt. Ltd.