Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
General Principles and Processes of Isolation of Metals

NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals

Electrolytic reduction of alumina to aluminium by Hall-Heroult...

Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out

Options

  1. Ain the presence of NaClNaCl
  2. Bin presence of fluorite
  3. Cin presence of cryolite which forms a melt with lower melting temperature
  4. Din the presence of cryolite which forms a melt with higher melting temperature

Correct answer

C. in presence of cryolite which forms a melt with lower melting temperature

Step-by-step solution

Cryolite is used to lower the meeting point of alumina (Al2O3)( A{l}_{2}{O}_{3} ) as well as to make it good conductor of electric current.
Practice General Principles and Processes of Isolation of Metals on Quantrex Academy →

More from General Principles and Processes of Isolation of Metals

Identify the incorrect pair from the following : JEE Main 2024The correct statement(s) related to processes involved in the extraction of metals is(are) JEE Advanced 2023Which one of the following is not an example of calcination? JEE Main 2023Given below are two statements related to Ellingham diagram : Statement I : Ellingham… JEE Main 2023Which one of the following is most likely a mismatch? JEE Main 2023Given below are two statements: one is labelled as Assertion A and the other is labelled… JEE Main 2023Given below are two statements: Statement I: In the metallurgy process,sulphide ore is… JEE Main 2023In the extraction process of copper, the product obtained after carrying out the… JEE Main 2023 Full General Principles and Processes of Isolation of Metals list All NTA Abhyas JEE Main PYQs