Duration: 5:10

4 views

0

When a equimolar mixture of \( \mathrm{Cu}_{2} \mathrm{~S} \) and \( \mathrm{CuS} \) is titrated with \( \mathrm{Ba}\left(\mathrm{MnO}_{4}\right)_{2} \) in acidic medium, the final products contain \( \mathrm{Cu}^{2+}, \mathrm{SO}_{2} \) and \( \mathrm{Mn}^{2+} \). If the mol. mass of \( \mathrm{Cu}_{2} \mathrm{~S} \), CuS and \( \mathrm{Ba}\left(\mathrm{MnO}_{4}\right)_{2} \) are
\( \mathrm{P} \) \( M_{1}, M_{2} \) and \( M_{3} \) respectively then :
(a) eq. mass of \( \mathrm{Cu}_{2} \mathrm{~S} \) is \( \frac{M_{1}}{8} \)
(b) eq. mass of \( \operatorname{CuS} \) is \( \frac{M_{2}}{6} \)
(c) eq. mass of \( \mathrm{Ba}\left(\mathrm{MnO}_{4}\right)_{2} \) is \( \frac{M_{3}}{5} \)
(d) \( \mathrm{Cu}_{2} \mathrm{~S} \) and \( \mathrm{CuS} \) both have same equivalents in mixture
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live