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AP EAMCET202021 Sep 2020Morning ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

Match the following items of List-I with those of List-II ( array |c|c|c|c| & List I & & List II ( A ) & Nickel & (1) & Electrolytic refining (B) & Titanium & (2) & Zone refining ( C ) & Germanium & (3) & van-Arkel method (D) & Copper & (4) & Mond process array ) The correct answer is

Options

  1. A( array cccc A & B & C & D 4 & 1 & 3 & 2 array )
  2. B( array cccc A & B & C & D 3 & 4 & 2 & 1 array )
  3. C( array cccc A & B & C & D 4 & 3 & 2 & 1 array )
  4. D( array cccc A & B & C & D 2 & 1 & 4 & 3 array )

Correct answer

C. ( array cccc A & B & C & D 4 & 3 & 2 & 1 array )

Step-by-step solution

(A) The Mond process, sometimes known as the carbonyl process, is a technique created by Ludwig Mond in 1890, to extract and purify nickel. Thus, correct match for (A) - (4). (B) van Arkel method is used for refining zirconium or titanium. In this method, oxygen and nitrogen, present as impurity are removed by heating metal in an evacuated vessel with iodine. Thus, correct match for (B) - (3). (C) Zone refining is a very useful method to get metals with very high purity such as silicon and germanium. Thus, correct

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