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JEE Main Chemistry question

ChemistryElectrochemistryJEE Main

During the discharge of a lead storage battery, the density of 40% (by weight) fell from 1.225 to 0.98 (which corresponds to 20% by weight). The number of ampere-hours for which the battery is used, containing 1 L of the acid, is ampere-hours. Calculate the value of .

Answer: 5

Solution

Molarity before: M. Molarity after: M. Change in molarity M, so moles of consumed in 1 L mol. From

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Question ID VK-143805