MCQ
Solder is an alloy of
- A$70\%$ lead, $ 30\%$ tin
- ✓$30\%$ lead, $70\%$ tin
- C$80\%$ lead, $20\%$ tin
- D$90\%$ $Cu, 10\%$ tin
✓
Answer
Correct option: B.
$30\%$ lead, $70\%$ tin
b
(b)Solder -$Sn$ $67\%$ and $ Pb$ $33\%.$
(b)Solder -$Sn$ $67\%$ and $ Pb$ $33\%.$
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