JEE Main 202621 JanuaryMorning Shift
- Exam
- JEE Main
- Year
- 2026
- Date
- 21 January
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- Structure of Atom
JEE Main 2026 · 21 January · Morning Shift · Chemistry · Structure of Atom
Given below are two statements : Statement I : When an electric...
Given below are two statements :
Statement I: When an electric discharge is passed through gaseous hydrogen, the hydrogen molecules dissociate and the energetically excited hydrogen atoms produce electromagnetic radiation of discrete frequencies.
Statement II: The frequency of second line of Balmer series obtained from is equal to that of first line of Lyman series obtained from hydrogen atom.
In the light of the above statements, choose the correct answer from the options given below :
Statement I: When an electric discharge is passed through gaseous hydrogen, the hydrogen molecules dissociate and the energetically excited hydrogen atoms produce electromagnetic radiation of discrete frequencies.
Statement II: The frequency of second line of Balmer series obtained from is equal to that of first line of Lyman series obtained from hydrogen atom.
In the light of the above statements, choose the correct answer from the options given below :
Options
- AStatement I is false but Statement II is true
- BBoth Statement I and Statement II are true
- CStatement I is true but Statement II is false
- DBoth Statement I and Statement II are false
Correct answer
B. Both Statement I and Statement II are true
Step-by-step solution
Statement I: Electric discharge through causes dissociation into excited H atoms which emit discrete frequencies (line spectrum). This is true.
Statement II: Using
For (Z=2), second Balmer line ():
For H (Z=1), first Lyman line ():
Both frequencies are equal. Statement II is true.
Both statements are true.
Statement II: Using
For (Z=2), second Balmer line ():
For H (Z=1), first Lyman line ():
Both frequencies are equal. Statement II is true.
Both statements are true.