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प्रश्न
Write the name and formula of two ores of the following: Iron
उत्तर
Iron: Haematite (Fe2O3) and Magnetite (Fe3O4).
APPEARS IN
संबंधित प्रश्न
Explain the following:
Zinc is used to cover iron so as to prevent rusting of iron. Why?
Explain
Nitric acid can be stored in aluminium containers
Name an alloy of copper in electrical appliances or household vessels.
From the metals: copper iron, magnesium, sodium and zinc, select a different metal in each case
which:
for not react with cold water but reacts with steam when heated.
Complete the statement using every given option.
During the extraction of aluminium..............
Ingredients and gangue in bauxite.
A tapping vessel opens in a tank-like container that is tapering on the lower side. The tank has an outlet for water on the upper side and a water inlet on the lower side. Finely ground ore is released in the tank. A forceful jet of water is introduced in the tank from lower side and gangue particles and pure ore are separated by this method.
- The above description is of which gravitation separation method?
- Draw a labelled diagram of this method.
Define the term : Charge
Name the process of concentration
(a) Based on densities
(b) Based on magnetic nature.
Name one metal occurring as a : Carbonate ore
Give composition and uses of the following alloys. Mention the reason for its use.
Bronze
