Home PYQs UPPSC UPPSC MCQs Prelims 1996 (GS Paper I)

Question

Solder used in soldering metal pieces consists of an alloy of:

  1. Tin and Zinc
  2. Tin and Lead
  3. Zinc and Lead
  4. Zinc and Copper

Answer:

Option B: Tin and Lead

Detailed Solution:

The correct answer is “Tin and Lead”.

While there are lead-free solder options available now due to environmental concerns, traditionally, solder was primarily a mixture of tin and lead.