12. ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES (HM)
Explanation:
(a) \(\% \,\,{\rm{of}}\,\,{\rm{S}} = \frac{{{\rm{32}}}}{{{\rm{233}}}} \times \frac{{{\rm{wt}}{\rm{.}}\,\,{\rm{of}}\,\,BaS{O_4}}}{{{\rm{wt}}{\rm{.}}\,\,{\rm{of}}\,\,{\rm{organic}}\,\,\,{\rm{compound}}}} \times 100\)
\( = \frac{{32}}{{233}} \times \frac{{0.35}}{{0.2595}} \times 100 = 18.52\% \) ग्राम