Questions
Statement 1 : Demineralised water does not contain any ions.
Statement 2 : Permutit process for water softening gives demineralised water.
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Correct option is B
water softened by Permutit process is not demineralized water since it still contains sodium salts.
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The molecular formula of a commercial resin used for exchanging ion in water softening is C8H7SO3 Na (mol. wt. = 206). What would be the minimum uptake of Ca2+ ions by the resin when expressed in mole per gram resin ?
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