JEE Main 2021Chemistryp Block Elements (Group 13 & 14)HardMCQ

JEE Main 2021 — p Block Elements (Group 13 & 14) Question with Solution

JEE Main 2021 (24 Feb Shift 1)

Question

Al2O3 was leached with alkali to get X. The solution of X on passing of gas Y, forms Z.

X,Y and Z respectively are

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Show full solutionCorrect option: D
Correct answer
DX=NaAlOH4, Y=CO2, Z=Al2O3, xH2O

Step-by-step explanation

(1) Al2O3+NaOH⟶NaAl(OH)4"X"

(2) NaAl(OH)4→"Y"CO2Al(OH)3"Z" or Al2O3·xH2O

So, when Al2O3 was leached with alkali to get X. The solution of X on passing of gas Y, forms Z.

X,Y and Z respectively are

X:NaAlOH4

Y:CO2

Z:Al2O3·xH2O

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About this question

This is a previous-year question from JEE Main 2021, covering the p Block Elements (Group 13 & 14) 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.