JEE Main 2019 — s Block Elements Question with Solution
JEE Main 2019 (10 Jan Shift 1)
Question
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Show full solutionCorrect option: C
Step-by-step explanation
Many metals can be used to make the anode of a X-ray tube, but only one metal is most suitable for the windows. It is beryllium because beryllium has lowest electron density outside its nucleus, and will absorb least X-ray.
Beryllium is used in making windows in X-ray tubes.
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This is a previous-year question from JEE Main 2019, covering the s Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.