Chemistry · Science General

Metallurgical Processes

1,403 Questions

This section explores key metallurgical processes including ore concentration, pyrometallurgy, and metal refining. It also covers corrosion and the properties of refractory materials. These chemistry questions are relevant for engineering and science entrance tests.

Pyrometallurgy furnacesMetal refining techniquesCorrosion protection methodsOre concentrationAuto reduction process

Metallurgical Processes Questions

Multiple choice

Rusting of iron represents

  1. phenomena of oxidation

  2. phenomena of galvanization

  3. change in physical state

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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Multiple choice

Which of the following correctly defines ‘ductility’?

  1. The ability of elements to be hammered into thin sheets.

  2. The ability of elements to be drawn into wires.

  3. The ability of elements to produce sound when struck.

  4. The ability of elements to conduct current.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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Multiple choice

Matrix is defined as

  1. unwanted foreign material present in the ore

  2. flux added to remove the unwanted impurities from ore

  3. slag formed as a result of the reaction of flux with gangue

  4. material used in the reduction of metal oxide to metal
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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Multiple choice

Rust is

  1. only Fe2O3

  2. a mixture of Fe2O3 and Fe(OH)2

  3. a mixture of FeO and Fe(OH)2

  4. a mixture of Fe3O4 and Fe(OH)2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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Multiple choice

Which of the following is an incorrect statement regarding the extraction of metals?

  1. Extraction of gold is carried out by cyanide process.

  2. Iron is extracted by using carbon reduction method.

  3. Extraction of tin metal involves the carbon reduction process.

  4. Aluminium acts as a reducing agent in aluminothermite process.

  5. Copper is extracted from its ores by carbon reduction method.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Copper is extracted from its ores by self-reduction method.

Multiple choice

Which of the following combinations of metal: chief ore-extraction method is not correctly matched?

  1. Iron: haematite-carbon reduction process

  2. Silver: argentite-cyanide process

  3. Chromium: chromite-aluminothermic process

  4. Lead: Galena-cyanide process

  5. Zinc: Sphalerite-froth flotation process
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The extraction of lead from its ore is done through various processes such as crushing and concentration through a froth flotation process.