Multiple choice

Match the Column-I with Column-II.

Alloys
Major constituents
A. Pewter 1. Al
B. Duralumin 2. Bi
C. Dow metal 3. Mg
D. Rose metal 4. Pb
5. Sn

  1. A - 5, B - 1, C - 3, D - 2

  2. A - 4, B - 1, C - 3, D - 2

  3. A - 5, B - 4, C - 3, D - 2

  4. A - 2, B - 1, C - 3, D - 5

  5. A - 4, B - 1, C - 3, D - 5
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A Correct answer
Explanation

Pewter alloy is composed of 76% Sn and 24% Pb. Duralumin is composed of 94% Al, 4% Cu, and 2% Mg, Mn & Si. Dow metal contains 93.8% Mg, 6% Al, 0.2% Mn. Rose metal consists of 50% Bi, 25% Pb and 25% Sn. Hence, the answer using the codes is A - 5, B - 1, C - 3, D - 2.

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