JEE Main 2019 — d and f Block Elements Question with Solution
JEE Main 2019 (11 Jan Shift 2)
Question
In the above sequence of reactions, A and D, respectively, are:
Choose an option
Show full solutionCorrect option: B
Correct answer
B and
Step-by-step explanation
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the d and f Block Elements chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2019, covering the d and f 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.