Knowee
Questions
Features
Study Tools

An ore on burning in air, gives a gas which smells like burning sulphur. Identify the ore & write itssteps of metallurgy

Question

An ore on burning in air, gives a gas which smells like burning sulphur. Identify the ore & write its steps of metallurgy.

🧐 Not the exact question you are looking for?Go ask a question

Solution

The ore you're referring to is likely Zinc Blende (ZnS) or Galena (PbS). Both of these ores, when burned in air, produce a gas that smells like burning sulphur because they contain sulphur. The gas produced is sulphur dioxide (SO2).

The steps of metallurgy for these ores are as follows:

  1. Enrichment of Ore: This is the first step where the ore is crushed and grinded into fine powder, and the gangue materials are removed. This is done through processes like froth flotation, magnetic separation, etc.

  2. Conversion to Oxide: The sulphide ore is then converted into its oxide form. This is done by roasting or calcination. Roasting is used for sulphide ores. In this process, the ore is heated in an excess of air. For example, ZnS + 3O2 -> 2ZnO + 2SO2.

  3. Reduction of the Oxide to the Metal: The oxide is then reduced to the metal. This is done by heating the oxide with a suitable reducing agent. For example, ZnO + C -> Zn + CO.

  4. Refining: The metal obtained is then refined to remove any remaining impurities. This can be done through various methods like electrolytic refining, liquation, distillation, etc.

Remember, the exact steps can vary depending on the specific ore and the metal that you're trying to extract.

This problem has been solved

Similar Questions

An ore on burning in air, gives a gas which smells like burning sulphur. Identify the ore & write itssteps of metallurgy

An ore on treatment with dil. HCl gives the smell of rotten eggs. Name the type of this ore. Howcan metal be obtained from its concentrated ore ?

Which of the following reaction produces SO2 gas?Burning of sulphur in oxygenReaction of copper with H2SO4Roasting of sulphide oresBurning of H2S

What is an ore?A:A type of soil that oxygen comes fromB:A type of elementC:Rock that contains metal compoundsD:Rock that contains oxygen

The process of converting ores into metal oxide in the absence of oxygen is calledA.RoastingB.CalcinationC.ReductionD.Leaching

1/1

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.