JEE Main 2012 — Classification of Elements and Periodicity in Properties Question with Solution
JEE Main 2012 (19 May Online)
Question
Which one of the following will react most vigorously with water?
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Reactivity with water increases on moving down the Goup from to as . This is due to increase in electropositive character. Hence Rb reacts most vigorously with water.
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This is a previous-year question from JEE Main 2012, covering the Classification of Elements and Periodicity in Properties 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.