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Doctors Medicines MCQs Q&A

  1. Zinc
  2. Tin
  3. Aluminium
  4. Copper
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1 Answers

Option 4 : Copper

Option 4 is correct, i.e. Copper.

Brass:

  • Brass is a metal alloy that is made up of copper and zinc.
  • The proportions of zinc and copper can vary to create different types of brasses with different properties.
  • It has higher malleability than bronze or zinc and has a relatively low melting point (900 to 940 °C).

Bronze:

  • Bronze is an alloy of copper and tin as the two main constituent elements.
  • Bronze has the major element as copper and about 12% of it is tin.
  • Some other elements added in minute quantities can be aluminum, nickel, or zinc.

German silver:

  • German silver is an alloy of copper, zinc, and nickel, sometimes also containing lead and tin.
  • German silver varies in composition, the percentage of the three elements ranging from approximately copper (60%), zinc (20%), and nickel (20%).
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Related Questions

In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. 1 - Along the road walked an old man.   P - He was white-headed as a mountain, bowed in the shoulders, and faded in general aspect.   Q- He wore a glazed hat, an ancient boat-cloak, and shoes; his brass buttons bearing an anchor upon their face.   R - One would have said that he had been, in his day, a naval officer of some sort or other   S - In his hand was a silver-headed walking-stick, which he used as a veritable third leg, perseveringly dotting the ground with its point at every few inches’ interval.   6 - Before him stretched the long, laborious road, dry, empty, and white.?
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