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JEE Main Chemistry question

ChemistryEquilibriumJEE Main

A sample of water has a hardness of 200 ppm Ca. This water sample was passed through an ion-exchange resin column and the Ca ions are replaced by H ions. What is pH of the water after this treatment?

Answer: 2

Solution

200 ppm Ca means 200 mg Ca per litre, i.e. mmol Ca per litre mol/L. Since each Ca

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Question ID VK-137528