Mole Concept & Stoichiometry · JEE Main previous year questions

2015 1 question

1. Q662015 · 4 Apr 2015 · Shift 1

   The molecular formula of a commercial resin used for exchanging ions in water softening is ${\mathrm{C}}_8{\mathrm{H}}_7\mathrm{S}{\mathrm{O}}_3\mathrm{Na}$ (Mol. Wt. 206). What would be the maximum uptake of $\mathrm{C}{\mathrm{a}}^{2+}$ ions by the resin when expressed in mole per gram resin?

   1. A.2/309
   2. B.1/412
   3. C.1/103
   4. D.1/206
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   Answer: B