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Doctors Medicines MCQs Q&A

  1. Roasting
  2. Reduction using aluminium
  3. Electrolytic reduction
  4. Carbon reduction
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1 Answers

Option 3 : Electrolytic reduction

Concept:

The electrolytic reduction method is used for the extraction of highly electropositive metals.

  • In the process of electrolysis, ionic substances are decomposed into simpler substances when an electric current is passed through them. 
  • Electricity current is the flow of electrons or ions in any conductor. Example: Na, K, Mg, K, etc are obtained by the electrolytic reduction process.
  • The oxides, hydroxide, and chlorides of metals infused state are electrically reduced by using this method. The metals are extracted at the cathode.
  • Metals that are placed high in the reactivity series are highly electropositive and they cannot be reduced by carbon as a reducing agent.

  • Roasting: It is the process in which ore is converted into its oxide by heating it strongly in excess of air.
  • Carbon Reduction (Smelting) : The reduction of oxide ore with carbon at high temperature is known as Smelting.
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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. Every Sunday morning I take a light jog around a park near my home.  P. Each time I jog by this lake, I see the same elderly woman sitting at the water’s edge with a small metal cage sitting beside her. Q. This past Sunday my curiosity got the best of me, so I stopped jogging and walked over to her.  R. As I got closer, I realized that the metal cage was, in fact, a small trap.  S. There’s a lake located in one corner of the park.   6. There were three turtles, unharmed, slowly walking around the base of the trap?
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