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NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 13 & 14)Practice

Alumino-thermite process is used for the extraction of metals, whose oxides are

Options

  1. AFusible
  2. BNot easily reduced by carbon
  3. CNot easily reduced by hydrogen
  4. DStrongly basic

Correct answer

B. Not easily reduced by carbon

Step-by-step solution

Alumino thermite process involves reduction of oxides such as F e 2 O 3 , M n 3 O 4 , C r 2 O 3 etc. to metals with aluminum. Cr 2 O 3   +   2Al → Al 2 O 3   +   2Cr;     ΔH   =   − ve

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