Home/ Questions/Q 4113
Next
Answered
Askmemetallurgy Official
Poll
Asked: 2020-03-14T04:10:48+05:30 In:

GATE MT 2011 Q16. Aluminium is NOT commercially produced by carbo-thermic reduction primarily because of:

Poll Results

14.29%(A) aluminium metal will have excess dissolved oxygen ( 1 voter )
14.29%(B) it melts at too low a temperature ( 1 voter )
0%(C) it does not vaporize at reasonable temperatures
71.43%(D) (D) Al-Al2O3 line is too low in Ellingham diagram and needs excessively high temperatures ( 5 voters )
Based On 7 Votes

Participate in Poll, Choose Your Answer.

GATE MT 2011 Q16. Aluminium is NOT commercially produced by carbo-thermic reduction primarily because of:
GATE MT 2011 Question paper with solutionGATE MT Previous Year Questions With SolutionGATE MT Thermodynamics
Share

    2 Answers

    1. Platinum GATE Metallurgy Coaching |Providing Video Solutions and Concepts of Metallurgy since 2016 | Follow our channel, "C Patel Metallurgy" on Youtube for your GATE preparation

      Option D is correct. Since Al-Al2O3 line is very low the temperature of this reduction is very high about 2000 C

      Option D is correct. Since Al-Al2O3 line is very low the temperature of this reduction is very high about 2000 C

      See less
      • 1
    2. Best Answer
      official account of Askmemetallurgy

      Correct answer is option D. Excessively  high temperature is not favourable for refractories  and also commercially not economical process.

      Correct answer is option D.

      • Excessively  high temperature is not favourable for refractories  and also commercially not economical process.
      See less
      • 0
    Leave an answer

    Leave an answer

    Browse

    Choose from here the video type.

    Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs".