Bissoy.com
Doctors Medicines MCQs Q&A

What is the purity range for copper obtained from electrolytic refining?

What is the purity range for copper obtained from electrolytic refining? Correct Answer 99.95-99.99%

The result of electrolytic refining is the transfer of pure metal from the anode to the cathode. The impurities of more basic metals remain in the electrolytic solution as ions and that of less basic metals settle down as anode mud. Copper refined through electrolysis is 99.95-99.99% pure.

Related Questions

An electrolytic refining cell for copper consists of an alloy with activity of copper acu = 0.8 as the anode, and pure copper as the cathode. What is the absolute value of the cell potential (in millivolts) at 25°C, given that copper is divalent? Faraday constant is 96500 C/mol and the universal gas constant is 8.314 J/(mol.K).
Which statement is correct about the electrolytic cells? Statement 1: In an electrolytic cell, an external source of voltage is used to bring about a chemical reaction.  Statement 2: This is the basis for an industrial process in which impure copper is converted into copper of high purity.
What will be the % purity of a solute? \) × 100 b) % purity = \(\) × 100 c) % purity = \( \) × 100 d) % purity = \(\) × 100
Which of the following statement about electrolytic cells are correct? The electrochemical processes are of great importance in the laboratory and the chemical industry.  One of the simplest electrolytic cell consists of two copper strips dipping in an aqueous solution of copper sulfate. 
In electrolytic refining of nickel (Ni), the anode is Cu-10 atom% Ni and the cathode is pure Ni. Assuming the Cu-Ni solution to be ideal, the absolute value of the minimum voltage (in mv) required for refining is.
Given, Faraday's constant = 96490 C mole-1, Temperature = 300 K, R = 8.314 J. mol-1. K-1
Which of the following is an electrolyte used during the electrolytic refining of copper?
The ratio of marks obtained by Rohit in Mathematics to the marks obtained in Science is 8 : 7, the marks of English is 10% more than the marks obtained in Science and the marks obtained in Hindi is 10% less than the marks obtained in Mathematics. If each subject is of 100 marks and the sum of marks of English and Hindi is 149, then find the percentage of passing mark where the passing marks is 40 more than the marks obtained by Rohit in Mathematics.
. A, B, C, D, E and F compared their marks in an examination and found that A obtained the highest marks, B obtained more marks than D, C obtained more than at least two others and £ had not obtained the lowest marks. Consider the following statements : Statement 1: At least two members obtained less marks than C Statement 2: E and F obtained the same marks Which of the above statement(s) is/are sufficient to identify the one with the , lowest marks ?
In a test, Randhir obtained more marks than the total marks obtained by Kunal and Debu. The total marks obtained by Kunal and Shankar are more than those of Randhir. Sonal obtained more marks than Shankar. Neha obtained more marks than Randhir. Who amongst them obtained highest marks?
Magnesium obtained in the electrolytic process has a minimum purity of ___________