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JEE Main Chemistry question

ChemistryStructure of AtomJEE Main

If each hydrogen atom in the ground state, 1.0 mol of H atoms, is excited by absorbing photons of energy , , , then the total number of spectral lines emitted is equal to .

Answer: 3

Solution

Ground state energy of H is ; transition energies from are (), (), (), etc., and ionization requires . A photon of is less than the needed to reach even , so it cannot

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Question ID VK-132443