- 1(current)
Q. No.Subtopic: f-Block Elements- Properties & Uses |
Level 3: 35%-60%
AIPMT - 1998
Hints
An incorrect statement among the following is :
| 1. | La(OH)3 is less basic than Lu(OH)3 |
| 2. | In Lanthanide series, ionic radius of Ln+3 ions decreases. |
| 3. | La is an element of a transition and not of Lanthanide series. |
| 4. | The atomic radius of Zr and Hf are the same because of Lanthanide contraction. |
Subtopic: f-Block Elements- Properties & Uses |
75%
Level 2: 60%+
AIPMT - 2001
Hints
The general electronic configuration of lanthanoids is:
1. (n – 2) f 1–14 (n – 1) s2 p6 d0–1 ns2
2. (n – 2) f 10–14 (n – 1) d0–1 ns2
3. (n – 2) f 0–14 (n – 1) d10 ns2
4. (n – 2) d0–1 (n – 1) f 1–14 ns2
Subtopic: f-Block Elements- Properties & Uses |
53%
Level 3: 35%-60%
AIPMT - 2002
Hints
The correct order of ionic radii of Y3+, La3+, Eu3+, and Lu3+ is:
(Atomic nos. Y = 39, La = 57, Eu = 63, Lu = 71)
1. Y3+ < La3+ < Eu3+ < Lu3+
2. Y3+ < Lu3+ < Eu3+ < La3+
3. Lu3+ < Eu3+ < La3+ < Y3+
4. La3+ < Eu3+ < Lu3+ < Y3+
Subtopic: f-Block Elements- Properties & Uses |
57%
Level 3: 35%-60%
AIPMT - 2003
Hints
The main reason for a larger number of oxidation states exhibited by the actinoids than the corresponding lanthanoids is:
| 1. | Larger atomic size of actinoids than the lanthanoids |
| 2. | More energy difference between 5f and 6d orbitals than between 4f and 5d orbitals |
| 3. | Lesser energy difference between 5f and 6d orbitals than between 4f and 5d orbitals |
| 4. | Greater reactive nature of the actinoids than the lanthanoids |
Subtopic: d-Block Elements- Properties & Uses | f-Block Elements- Properties & Uses |
80%
Level 1: 80%+
AIPMT - 2005
Hints
- 1(current)
Q. No.
© 2026 GoodEd Technologies Pvt. Ltd.