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| 1. |
Assertion (A) : Hydrogen has only one electron in its 1s orbital but it produces several spectral lines. Reason (R) : There are many excited energy levels available in H atoms.A. Both (A) and (R) are true and (R) is the correct explanation of (A)B. Both (A) and (R) are true and (R) is not the correct explanation of (A)C. (A) is true but (R) is falseD. (A) is false but (R) is true |
| Answer» Correct Answer - A | |