JEE Main 2023ChemistryHydrogenEasyNumerical

JEE Main 2023 — Hydrogen Question with Solution

JEE Main 2023 (30 Jan Shift 2)

Question

The strength of 50 volume solution of hydrogen peroxide is _____ g/L (Nearest integer).

Given:
Molar mass of H2O2 is 34 g mol-1
Molar volume of gas at STP=22.7 L.

Enter your answer

Show full solutionCorrect answer: 150
Correct answer
150

Step-by-step explanation

Molarity =Volume strength of H2O2Molar volume of oxygen gas at STP×2

Molarity =5011.35

The strength of the solution=Molarity×Molecular weight of H2O2

∴ Strength in gm/L=5011.35×34.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Hydrogen chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2023, covering the Hydrogen 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.