Previous year MCQs

General science UPPSC 1996 GS-I
Question

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

Answer & Solution

Answer: (Detailed Solution Below)

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.

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