LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
3.3k views
in Chemistry by (54.9k points)
closed by

A strip of impure copper metal is given to you. Describe briefly, how you will purify it by using the chemical of electric current.

1 Answer

+1 vote
by (54.7k points)
selected by
 
Best answer
  • The impure copper metal is made anode (positive).
  • A thin strip of pure copper is made cathode (negative).
  • The cathode and anode are immersed in the acidified copper sulphate solution and a battery is connected across them.
  • The acidified Copper Sulphate solution is used as the electrolyte.

When current is passed through the acidified Copper Sulphate solution, the copper ion present in the solution starts depositing on the cathode. Same amount of Copper is dissolved into the solution from the anode. In this way, the pure copper is deposited at
the cathode. The cathode gets thicker and the anode gets thinner as time passes during electrolysis. The impurities are left in the solution as anode mud.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...