JEE Main 2020ChemistryStates of MatterMediumNumerical

JEE Main 2020 — States of Matter Question with Solution

JEE Main 2020 (08 Jan Shift 2)

Question

NaClO3 is used, even in spacecrafts, to produce O2. The daily consumption of pure O2 by a person in 492 L at 1 atm, 300K. How much amount of NaClO3, in grams, is required to produce O2 for the daily consumption of a person at 1 atm, 300K ? _____

NaClO3s+Fes→O2g+NaCls+FeOs
R=0.082 L atm mol-1 K-1

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Show full solutionCorrect answer: 2130
Correct answer
2130

Step-by-step explanation

Mol of NaClO3 = Mol of O2

Mol of O2=PVRT=1×4920.082×300=20 mol
 

Mass of NaClO3 =20×106.5=2130 g

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About this question

This is a previous-year question from JEE Main 2020, covering the States of Matter 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.