JEE Main & Advanced
Chemistry
Structure of Atom / परमाणु संरचना
Question Bank
Quantum number, Electronic configuration and Shape of orbitals
question_answer
In a multi-electron atom, which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields [AIEEE 2005] (1) \[n=1,\,l=0,\,m=0\] (2) \[n=2,\,l=0,\,m=0\] (3) \[n=2,\,l=1,\,m=1\] (4) \[n=3,\,l=2,\,m=0\] (5) \[n=3,\,l=2,\,m=0\]
A) (1) and (2)
B) (2) and (3)
C) (3) and (4)
D) (4) and (5)
Correct Answer:
D
Solution :
(4) and (5) belong to \[d\]-orbital which are of same energy.