Chemistry-(general)
NEET Chemistry (general) Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 11
Assertion (A): The lanthanoid series consists of elements with atomic numbers from 58 to 71. | Reason (R): The lanthanoid series is characterized by the filling up of 4f orbitals.
A
Both A and R are true, and R is the correct explanation of A.
B
Both A and R are true, but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
The lanthanoid series includes elements with atomic numbers from 58 to 71, and it is characterized by the filling of the 4f orbitals, as noted in the NCERT context.
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