Questions
The alum used for purifying water is
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a
Ferric alum
b
Chrome alum
c
Potash alum
d
Ammonium alum
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Correct option is C
K2SO4. Al2(SO4)3. 24H2OPotash alum is generally used for purifying water.Similar Questions
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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