Question

Match the following: 

• A. \( A - V, B - I, C - II, D - III \)
• B. \( A - V, B - II, C - I, D - III \)
• C. \( A - V, B - I, C - IV, D - III \)
• D. \( A - II, B - I, C - III, D - IV \)

Hint:

- Zone refining is used for semiconductors like Si, Ge.
- Liquation is used for low-melting metals like Sn, Pb.
- Electrolysis is commonly used for metals like Cu, Al.
- Vapour phase refining is used for Ni, Zr, Ti using the Mond process.

Answer 1

The Correct Option is A

Step 1: Understanding Refining Methods 
- Vapour phase refining (Van Arkel method) is used for metals like Nickel (Ni). 
- Zone refining is used for Silicon (Si) and other semiconductors. 
- Liquation is used for Tin (Sn) to remove impurities with lower melting points. 
- Electrolysis is commonly used for Copper (Cu) purification. 

Step 2: Matching Correct Refining Methods 
- \( A - V \) (Nickel - Vapour phase refining) 
- \( B - I \) (Silicon - Zone refining) 
- \( C - II \) (Tin - Liquation) 
- \( D - III \) (Copper - Electrolysis) 

Step 3: Conclusion 
- The correct answer is Option (1): A - V, B - I, C - II, D - III.