JEE Main 2022 — D And F Block Elements Question with Solution
From: JEE Main 2022 (Online) 29th July Morning Shift
Question
The reaction of zinc with excess of aqueous alkali, evolves hydrogen gas and gives :
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Zinc dissolves in excess of aqueous alkali.
(Tetrahydroxozincate(II) ion)
However, this reaction in NCERT is given as
is anhydrous form of .
So in aqueous medium best answer of this question is .
(Tetrahydroxozincate(II) ion)
However, this reaction in NCERT is given as
is anhydrous form of .
So in aqueous medium best answer of this question is .
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This is a previous-year question from JEE Main 2022, 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.