| List-I | List-II |
|---|---|
| (A) Lyman | (i) n = 2, 3, 4, ... |
| (B) Balmer | (ii) n = 3, 4, 5, ... |
| (C) Paschen | (iii) n = 4, 5, 6, ... |
| (D) Bracket | (iv) n = 5, 6, 7, ... |
Hydrogen spectral series and their transitions:
• Lyman series: transitions to n=1 from higher energy levels (n=2, 3, 4, ...).
• Balmer series: transitions to n=2 from higher energy levels (n=3, 4, 5, ...).
• Paschen series: transitions to n=3 from higher energy levels (n=4, 5, 6, ...).
• Bracket series: transitions to n=4 from higher energy levels (n=5, 6, 7, ...).
The correct matching is: (A) - (i), (B) - (ii), (C) - (iii), (D) - (iv).