Question

Which of the transitions below can produce a spectral line in the visible region of the emission spectrum of hydrogen?

a) n=2>n-5
b) n-4-->n-3
c) n=5->n 2
d) n= 4-> n-1

Answer 1

The spectral line in the visible region of the emission spectrum of hydrogen for the given transitions is produced by option c) n=5 to n=2, which is part of the Balmer series.

Step-by-step explanation:

The student asked which of the transitions below can produce a spectral line in the visible region of the emission spectrum of hydrogen:

• n=2 to n=5
• n-4 to n-3
• n=5 to n=2
• n=4 to n=1

Upon examining the transitions given and understanding that the Balmer series corresponds to electron transitions from a higher energy level to the n=2 energy level, and that these transitions produce spectral lines in the visible spectrum, we can identify that option c) n=5 to n=2 is the correct answer.

Transitions in the Balmer series such as from n = 3, 4, 5, and so on, to n = 2 result in visible spectral lines. Specifically, transitions from n=5 to n=2 produce a spectral line in the blue region of the hydrogen emission spectrum.