MCQEasy1 mark

Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)

Substance which helps to lower the fusion point of the mixture in Hall Heroult Process:

Topic: Metallurgy, ores, extraction and alloys

Previous-year question practice database

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CokeConcentrated sodium hydroxideFluorsparConcentrated potassium hydroxide

Exam answer

(a) Cryolite.

Explanation

Cryolite lowers the fusion point of alumina in the Hall-Héroult process.

In words

Cryolite.