Question Paper from: IIT JEE Main 2021 TestSeries Paper 1

The electron identified by quantum number n and l

(i) n = 4, l = 1

(ii) n = 4, l = 0

(iii) n = 3, l = 0

(iv) n = 3, l = 1

can be placed in order of increasing energy

iii < iv < i < ii

iii < iv < ii < i

i < iii < ii < iv

iii < i < iv < ii

Solution:

Chapter Name: Atomic Structure

Difficulty Level: Moderate

i) belong to 4p

ii) belong to 3s

iii) belong to 4s

iv) belong to 3p

4p > 4s > 3p > 3s

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IIT JEE Main 2021 TestSeries Paper 1

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