JEE Main 2019 — General Principles and Processes of Isolation of Metals Question with Solution
JEE Main 2019 (12 Jan Shift 2)
Question
The pair that does not require calcination is
Choose an option
Show full solutionCorrect option: B
Correct answer
B and
Step-by-step explanation
Calcination is required for hydroxide carbonate and hydrated ores. So, calcination for and will not occur.
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This is a previous-year question from JEE Main 2019, covering the General Principles and Processes of Isolation of Metals 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.