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प्रश्न
The following question refer to the extraction of aluminium and iron from their ores :
Name the principle ore from which i. iron, and ii. Aluminium is extracted.
उत्तर
Ore of iron is haematite and ore of aliminium is bauxite.
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संबंधित प्रश्न
Select the process from the following which matches the given description.
(calcination, roasting, pulverisation, smelting)
Crushing of the ore into a fine powder.
State the main components of the following alloys:
Duralumin
State the main components of the following alloys:
Bronze
From the metals: copper, iron, magnesium, sodium, and zinc, select a different metal in the case which can form 2+ and 3+ ions.
Complete and balance the following equation:
Al + KOH + H2O →
Name the alloy of zinc used in simple voltaic cells.
Find the odd one out of the following and explain your choice : Copper, Lead, Zinc, Mercury
State the main components of the following alloy:
Duralumin
The two main metals in bronze are
Draw diagram of magnetic separation process and answer the questions based on it.
- Give example in which this process can work.
- Suggest any two methods that can also be used for this purpose.
- Which technique is based on hydrophobic and hydrophilic properties of particles?
