Advertisements
Advertisements
Question
Explain concept with example/explain with the help of a balanced equation.
Minerals
Solution
- Most metals being reactive do not occur in nature in the free state but are found in a combined state as their salts such as oxides, carbonates, sulphides, and nitrates.
- However, some unreactive metals like silver, gold, platinum, generally occur in a free state.
- The compounds of metals that occur in nature along with the impurities are called minerals.
- For example, bauxite is a mineral of aluminium.
APPEARS IN
RELATED QUESTIONS
Give the importance of the following for living beings:
Nitrogen
Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is a more reactive metal.
Give the effect of heat on their: carbonates
Name the processes involved in refining of ores.
Name the methods used for purification?
`MnO_2 + 4Al` …………….
`2Cu_2O +Cu_2S` ......................
Where are the cathode and anode in the electrolytic cell? Name the material used for these?
Why is flux used in the blast furnace?
A compound that is added to lower the fusion temperature of the electrolytic bath in the extraction of aluminium.
The chemical formula of zinc blend is _______.
Write the molecular formulae of the following compound.
Copper pyrite
Write the molecular formulae of the following compound.
Ferrous tungstate
Complete flow chart given below.
Identify the following method of concentration of ores and explain briefly.
Complete the following flowchart.
The chemical name of rust is ______.
State the reason for the addition of caustic alkali to bauxite ore during the purification of bauxite.
A process of extracting metals from aqueous solutions of their salts using suitable reducing agents is called ______
Explain the following term:
Metallurgy