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Question

The element that can be refined by distillation is


A

Tin

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B

Gallium

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C

Zinc

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D

Nickel

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Solution

The correct option is C

Zinc


Explanation of the correct option:

The correct answer is option C:

  1. By boiling an impure liquid to its boiling point and then chilling the vapors, the pure liquid can be obtained by distillation.
  2. This technique is used to purify metals having low boiling points.
  3. As a result, this procedure makes use of metals including zinc, cadmium, and mercury.
  4. This procedure involves heating the impure metal in a distillation flask.
  5. After some time, the metal will begin to boil and turn into vapors and solidify in the final process.

Explanation of the incorrect options:

Option A:

  1. Refining of Tin can be done by poling, electrorefining, and cupellation.

Option B:

  1. Gallium is refined via a method called zone refining, which is based on the idea that impurities are more soluble in the metal's molten state than in its solid-state.

Option D:

  1. The procedure used to refine nickel metal is called the Mond process.
  2. This method involves heating nickel in steam of carbon monoxide to produce the flammable nickel carbonyl.

Hence, option C is correct.
The element that can be refined by distillation is Zinc.


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