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What is thermite process? Mention its applications in daily life.

Important Questions on Metals and Non-metals

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Science>Chemistry>Metals and Non-metals>Occurrence of Metals
In the Wilfley table method, the particles of gangue are separated by the _____ separation method.
EASY
Science>Chemistry>Metals and Non-metals>Occurrence of Metals
Write the balanced chemical equation of the reaction for the formation of metallic iron from ferric oxide by thermit process. Write an application of the process. 
EASY
Science>Chemistry>Metals and Non-metals>Occurrence of Metals

Find the odd man out: 

Tinning, Anodisation, Alloying, Froth floatation. 

EASY
Science>Chemistry>Metals and Non-metals>Occurrence of Metals
Bauxite, an ore of aluminium, is purified by which process?
HARD
Science>Chemistry>Metals and Non-metals>Occurrence of Metals
Carbon cannot reduce the oxides of sodium, magnesium and aluminium to their respective metals. Why? Where are these metals placed in the reactivity series? How are these metals obtained from their ores? Take an example to explain the process of extraction along with chemical equations.
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Science>Chemistry>Metals and Non-metals>Occurrence of Metals
Name the process by which impure ore of aluminium gets purified by using concentrated solution of an alkali.
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Science>Chemistry>Metals and Non-metals>Occurrence of Metals
In Alumino-Thermite process aluminium is used as 
HARD
Science>Chemistry>Metals and Non-metals>Occurrence of Metals

In the given figure, the purification of copper in electric decomposition is shown. Label against 1,2,3,4 and 5. 

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Science>Chemistry>Metals and Non-metals>Occurrence of Metals
Compound X and aluminium are used to join railway tracks. Identify the compound.
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Science>Chemistry>Metals and Non-metals>Occurrence of Metals
Explain the thermite process with the equation.
EASY
Science>Chemistry>Metals and Non-metals>Occurrence of Metals
How do we extract metals low in activity series from their ores?
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Science>Chemistry>Metals and Non-metals>Occurrence of Metals

Write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores.

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Science>Chemistry>Metals and Non-metals>Occurrence of Metals
What is anode mud?
MEDIUM
Science>Chemistry>Metals and Non-metals>Occurrence of Metals
The refining method used when the metal and the impurities have low and high melting temperatures, respectively, is
HARD
Science>Chemistry>Metals and Non-metals>Occurrence of Metals

Write short note on electrolytic refining of metals.

EASY
Science>Chemistry>Metals and Non-metals>Occurrence of Metals

Define the term-

(i.) Ore
(ii.) Gangue

EASY
Science>Chemistry>Metals and Non-metals>Occurrence of Metals
Write the name of the main ore of mercury metal.
HARD
Science>Chemistry>Metals and Non-metals>Occurrence of Metals

Compound X and aluminium are used to join railway tracks.

(i) Identify the compound X.

(ii) Name the reaction. 

(iii) Write down its chemical equation. 

MEDIUM
Science>Chemistry>Metals and Non-metals>Occurrence of Metals
How is copper extracted from its sulphide ore? Explain the various steps supported by chemical equations. Draw labelled diagram for the electrolytic refining of copper.
EASY
Science>Chemistry>Metals and Non-metals>Occurrence of Metals
Give the name and chemical formula of one ore of copper.