Related InterviewSolutions

• The scientific and technological processes used for isolation of the metal from its ore is known as metallurgy.a) Name the method used for removing gangue from suiphide ores.b) Explain the above method.c) Give two examples for alloy steel.
• Differentiate Cast Iron and pig iron.
• Some data are given below :(Iron tank, Carbon lining, Cryolite, Carbon blocks, Electricity)1. Identify the metal whose metallurgy is associated here.2. Explain the extraction of this metal.
• You are provided with samples of impure copper and germanium.1. Which method would you recommend for the purification of each of these metals?2. What is ‘‘Copper matte”? How is it formed?
• The choice of reducing agents in a particular case depends on the thermodynamic factor.1. How far do you agree with this statement?2. Support your opinion with an example.
• The process used for the extraction of sodium is
• Which flux can be used to remove a metal oxide impurity from a sulphide ore of noble metal? Substantiate.
• Why is the reduction of a metal oxide easier if the metal formed is in liquid state at the temperature of reduction?
• What do you mean by refining? Mention the methods also.
• Why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction?