A. Zinc and Lead
B. Tin and Zinc
C. Tin and Lead
D. Lead and Zinc
🧠 Explanation:
Solder is a fusible metal alloy made primarily of tin and lead. It is widely used in electronics and metalwork to join different components together. The alloy has a relatively low melting point, which makes it ideal for melting and bonding without damaging sensitive materials. Tin provides strength and corrosion resistance, while lead makes the alloy melt easily and flow smoothly. Today, in many industries, lead-free solder is preferred due to health and environmental concerns.
