JEE Main 2021Chemistrys Block ElementsEasyNumerical

JEE Main 2021s Block Elements Question with Solution

JEE Main 2021 (25 Feb Shift 2)

Question

Among the following, number of metal/s which can be used as electrodes in the photoelectric cell is ___ . (Integer answer)
(A) Li
(B) Na
(C) Rb
(D) Cs

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Step-by-step explanation

Cs is used as electrodes in the photoelectric cell.

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About this question

This is a previous-year question from JEE Main 2021, 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.