JEE Main 2019 — Hydrogen Question with Solution
From: JEE Main 2019 (Online) 10th January Morning Slot
Question
The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are :
Choose an option
Show full solutionCorrect option: D
Correct answer
D3 and 1
Step-by-step explanation
Total number of isotopes of hydrogen is 3
or or
and only or is an Radioactive element.
or or
and only or is an Radioactive element.
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This is a previous-year question from JEE Main 2019, covering the Hydrogen 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.