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Question: Answered & Verified by Expert
'25 volume' hydrogen peroxide means
ChemistryHydrogenJEE MainJEE Main 2023 (25 Jan Shift 1)
Options:
  • A 1 L marketed solution contains 250 g of H2O2.
  • B 1 L marketed solution contains 75 g of H2O2.
  • C 100 mL marketed solution contains 25 g of H2O2.
  • D 1 L marketed solution contains 25 g of H2O2.
Solution:
1592 Upvotes Verified Answer
The correct answer is: 1 L marketed solution contains 75 g of H2O2.

25 volumes' H2O2 means: 1 L of H2O2 on decomposition give 25 L of O2 (g) at STP.

2H2O2  (l)  2H2O (l) + O2 (g) 2[2522.4]mole                     [2522.4]mole

Mass of H2O2 = 2 × 2522.4 × 34 = 75 gram

 

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