Verified Solution • 2025–26 Session moderate

QJEEM15Chf510: JEE Main 2015 Chemistry - Class 11 JEEM15Chf510 Solution: Which of the following is the energy of a possible excited…

Which of the following is the energy of a possible excited state of hydrogen?

Multiple Choice Options

  • A –6.8 eV
  • B –3.4 eV
  • C +6.8 eV
  • D +13.6 eV

Step-by-Step Verified Solution

Energy(En) = −13.6Z2n2eV- {{13.6{Z^2}} \over {{n^2}}}eV

where n = 1, 2, 3, 4, ......

For hydrogen Z = 1 and excited state starts from n = 2

So putting n = 2

E2 = −13.622eV- {{13.6} \over {{2^2}}}eV = -3.4 eV

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