Actinoids (Electronic Configuration and Oxidation States) NEET Questions

Inorganic Chemistry - D- and F-Block Elements

Actinoids (Electronic Configuration and Oxidation States) MCQ Questions


7.
Which actinoid element exhibits +7 oxidation state?
A.
Neptunium
B.
Curium
C.
Thorium
D.
Uranium
😑 View Answer Rough Work Error
ANSWER :
A. Neptunium
8.
The electronic configuration of U (Z = 92) is:
A.
[Rn] 5f² 6d² 7s²
B.
[Rn] 5f³ 6d¹ 7s²
C.
[Rn] 5f⁴ 7s²
D.
[Rn] 5f⁶ 7s⁰
😑 View Answer Rough Work Error
ANSWER :
B. [Rn] 5f³ 6d¹ 7s²
9.
Which of the following statements about actinoids is INCORRECT?
A.
They show a wider range of oxidation states than lanthanoids
B.
The +3 oxidation state is most common
C.
All actinoids are radioactive
D.
5f orbitals are more buried than 4f orbitals
😑 View Answer Rough Work Error
ANSWER :
D. 5f orbitals are more buried than 4f orbitals
10.
The last element in the actinoid series is:
A.
Nobelium (No)
B.
Lawrencium (Lr)
C.
Mendelevium (Md)
D.
Fermium (Fm)
😑 View Answer Rough Work Error
ANSWER :
B. Lawrencium (Lr)
11.
The oxidation state of +4 is most stable in which actinoid?
A.
Uranium
B.
Plutonium
C.
Thorium
D.
Americium
😑 View Answer Rough Work Error
ANSWER :
C. Thorium
12.
Which of the following actinoids shows +2 oxidation state along with +3?
A.
U
B.
Pa
C.
Th
D.
No
😑 View Answer Rough Work Error
ANSWER :
D. No