JEE Main 2013 — s Block Elements Question with Solution
JEE Main 2013 (09 Apr Online)
Question
Sodium Carbonate cannot be used in place of for the identification of and ions (in group ) during mixture analysis because :
Choose an option
Show full solutionCorrect option: A
Correct answer
A ions will also be precipitated.
Step-by-step explanation
If is used in place of . It will precipitate group radicals as well as magnesium radicals. The reason for this is the high ionization of in water into and . Now the higher concentration of is available which exceeds the solubility product of group radicals as well as that of magnesium radicals.
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This is a previous-year question from JEE Main 2013, 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.