Question : The manufacturing of iron from iron ore involves the process of
Option 1: oxidation
Option 2: reduction
Option 3: electrolysis
Option 4: fractional distillation
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Correct Answer: reduction
Solution : The correct option is reduction.
Reduction is a step in the process of making iron from iron ore. It is sometimes known as iron reduction or iron smelting. Iron reduction is a chemical process that occurs when a reducing agent, such as carbon or carbon monoxide, is heated with iron ore (mostly iron oxide compounds) in a furnace. By reducing the iron oxide to elemental iron, this reaction creates molten iron, which may then be used in other forms and goods.
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Question : Process of gaining electrons is known as -----------------.
Option 3: radiation
Option 4: both oxidation and reduction
Question : _______ is the process of complete or incomplete oxidation or hydrolysis of fats and oils when exposed to air, light, moisture, or bacterial action that spoils food.
Option 1: Rancidification
Option 2: Hydrogenation
Option 3: Auto-oxidation
Option 4: Auto reduction
Question : The Bailadila range of Chhattisgarh is famous for which of the following minerals?
Option 1: Copper
Option 2: Bauxite
Option 3: Iron ore
Option 4: Coal
Question : Activated charcoal is used to remove colouring matter from pure substances by
Option 1: bleaching
Option 2: oxidation
Option 3: adsorption
Option 4: reduction
Question : The principal__________ reserves are in Neyveli in Tamil Nadu.
Option 1: bauxite
Option 2: iron ore
Option 3: copper
Option 4: lignite
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