JEE Mains · Chemistry · STD 11 - 2. structure of atom
Consider the following spectral lines for atomic hydrogen:
A. First line of Paschen series
B. Second line of Balmer series
C. Third line of Paschen series
D. Fourth line of Bracket sereis
The correct arrangement of the above lines in ascending order of energy is:
- A D < C < A < B
- B A < B < C < D
- C C < D < B < A
- D D < A < C < B
Answer & Solution
Correct Answer
(D) D < A < C < B
Step-by-step Solution
Detailed explanation
Series \(n _1\) \(n _2\) (A) Paschen ( \(1^{\text {st }}\) line) 3 4 (B) Balmer ( \(2^{\text {nd }}\) line) 2 4 (C) Paschen ( \(3^{\text {rd }}\) line) 3 6 (D) Bracket \(\left(4^{\text {th }}\right.\) line) 4 8 So correct ascending order of energy of above lines is : D < A < C <…
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