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Doctors Medicines MCQs Q&A

  1. 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium
  2. 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium
  3. 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium
  4. 5 to 6% tin, 2 to 3% copper and rest aluminium
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1 Answers

Answer: Option 2

Y-alloy contains 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium

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