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AIIMS2015ChemistryStructure of Atom

Assertion : For Balmer series of hydrogen spectrum, the value n₁=2 and n₂=3,4,5 . Reason : The value of n₂ for a line in Balmer series of hydrogen spectrum having the highest wavelength is 6 .

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIfboth assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false.

Step-by-step solution

The wavelength of the line can be calculated by the Rydberg formula : 1 =R ( 1 n₁^2 - 1 n₂^2 ), R= Rydberg constant Therefore, wavelength will be highest in Balmer series (n₁=2 . ) when n₂ is 3 .

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