JEE Main 2020 — s Block Elements Question with Solution
JEE Main 2020 (02 Sep Shift 1)
Question
The metal mainly used in devising photoelectric cells is :
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Cesium has lowest ionisation enthalpy and hence it can show photoelectric effect to the maximum extent hence it is used in photo electric cell.
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This is a previous-year question from JEE Main 2020, 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.