Spectrum of the Hydrogen Atom NEET Questions

Physical Chemistry - Atomic Structure

Spectrum of the Hydrogen Atom MCQ Questions


13.
Which scientist first showed empirically that visible lines of hydrogen spectrum follow a formula?
A.
Bohr
B.
Balmer
C.
Lyman
D.
Rydberg
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ANSWER :
B. Balmer
14.
The Swedish spectroscopist who generalized Balmer's formula to all hydrogen series is:
A.
Brackett
B.
Lyman
C.
Rydberg
D.
Paschen
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ANSWER :
C. Rydberg
15.
The wavenumber of the first line of Lyman series is approximately:
A.
82,257 cm⁻¹
B.
5,331 cm⁻¹
C.
15,233 cm⁻¹
D.
109,677 cm⁻¹
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ANSWER :
A. 82,257 cm⁻¹
16.
The wavelength of first line of Balmer series (Hα) is approximately:
A.
656.3 nm
B.
486.1 nm
C.
434.0 nm
D.
121.6 nm
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ANSWER :
A. 656.3 nm
17.
The series limit of any spectral series corresponds to:
A.
n₂ = ∞
B.
n₂ = 2
C.
n₂ = n₁ + 1
D.
n₂ = 1
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ANSWER :
A. n₂ = ∞
18.
The series limit of Lyman series has wavenumber:
A.
27,420 cm⁻¹
B.
109,677 cm⁻¹
C.
12,186 cm⁻¹
D.
82,258 cm⁻¹
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ANSWER :
B. 109,677 cm⁻¹