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NEET Chemistry QUESTION #7386
Question 1
Which series of spectral lines of the hydrogen atom falls in the visible region?
  • Lyman series
  • Balmer series✔️
  • Paschen series
  • Brackett series
Correct Answer Explanation
Hydrogen spectral series and their regions:
  • Lyman (\(n\to1\)): UV region
  • Balmer (\(n\to2\)): Visible region (400–700 nm)
  • Paschen (\(n\to3\)): Near IR
  • Brackett (\(n\to4\)): IR
  • Pfund (\(n\to5\)): Far IR
The Balmer series (H\(\alpha\) at 656 nm red, H\(\beta\) at 486 nm blue, etc.) was the first discovered because it falls in the visible range.