0.5g sample of iron containg mineral mainly in the form of CuFeS_(2) was reduced suitably to vonvert all the ferruic ions into ferrous ions (Fe^(3+) rarr Fe^(2+)) and was obtained as solution. In the absenceof any interferringradical, the solution. In the absenceof any interfeerring radical, the solution required 42mL of interferring radical, the solution required 42mL of 0.1M K_(2)Cr_(2)O_(7) for tirtration. Calculate% of CuFeS_(2) in sample.

0.5g sample of iron containg mineral mainly in the form of CuFeS_(2) w

1.	0.5g sample of iron containg mineral mainly in the form of CuFeS_(2) was reduced suitably to vonvert all the ferruic ions into ferrous ions (Fe^(3+) rarr Fe^(2+)) and was obtained as solution. In the absenceof any interferringradical, the solution. In the absenceof any interfeerring radical, the solution required 42mL of interferring radical, the solution required 42mL of 0.1M K_(2)Cr_(2)O_(7) for tirtration. Calculate% of CuFeS_(2) in sample.
Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :`92.48%`</body></html>