Metallurgy Questions

Which of the following pairs of metals is purified by van Arkel method?

Which of the following elements is present as the impurity to the maximum extent in the pig iron?

Which of the following is a carbonate ore?

Assertion : Extraction of iron metal from iron oxide ore is carried out by heating with coke.Reason : The reaction ${\text{Fe}}_2{\text{O}}_{3(s)}\to {\text{Fe}}_{(s)}+3/2{\text{O}}_{2(g)}$ is a spontaneous process.

In the extraction of iron, which of the following reactions pertains to the formation of slag in the blast furnace?

Which one of the following is a mineral of iron?

Identify the alloy containing a non-metal as a constituent in it.

In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with:

Aluminium is extracted from alumina (${\text{Al}}_2{\text{O}}_3$) by electrolysis of a molten mixture of:

In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with:

Match items of column I with the items of Column II