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JEE Main Chemistry question

ChemistryRedox ReactionsJEE Main

There is a sample of 20 volume of hydrogen peroxide solution. Calculate its strength

Answer: (A)

Solution

For "20 volume" HO, 1 L of solution liberates 20 L of O at NTP. Since 68 g of HO gives 22.4 L of O, the mass of HO per litre is

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Question ID VK-137275