Previous year MCQs

General science UPPSC 2005 GS-I
Question

Solder is an alloy of

Answer & Solution

Answer: (Detailed Solution Below)

Option A: tin an lead

Detailed Solution:

The correct answer is “tin an lead”.
Solder is an alloy of tin and lead, also known as a fusible metal alloy. It's typically made up of 50% tin and 50% lead and has a melting point of less than 450°C.

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