Solved papers for JEE Main & Advanced JEE Main Solved Paper-2015
done JEE Main Solved Paper-2015 Total Questions - 1
question_answer1) The molecular formula of a commercial resin used for exchanging ions in water softening is \[{{C}_{8}}{{H}_{7}}S{{O}_{3}}Na\] (Mol. wt. 206). \[C{{a}^{2+}}\] ions by the resin when expressed in mole per gram resin ?
[JEE Main Solved Paper-2015 ]