(a) Give an example of zone refining of metals. (b) What is the role of cryolite in the metallurgy of aluminium?

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A: Bauxite is a sedimentary rock and it is the ore of Aluminum. The chemical composition of bauxite is…

Q: Account for the relative band gap energies of semiconductors interms of periodic trends?

A:

Q: Draw the structures of manganate and permanganate ions and predict their magnetic character.

A: Draw the structures of manganate and permanganate ions and predict their magnetic character.

Q: At STP conditions, identify the phase under which carbon dioxide exists

A: STP Is known as standard temperature and pressure. Standard pressure is 1 atm and temperature is 273…

Q: Account for the relative bandgap energies of semiconductors interms of periodic trends?

A: Semiconductors are materials which have a conductivity between conductors (generally metals) and…

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A: Given: At high temperature, the reaction of silica sand (quartz) and coke produces silicon carbide…

Q: Describe the role of the following: (i) Si02 in the extraction of copper from copper matte. (ii)…

A:

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A:

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A: For alkaline earth metal carbonate:-  Thermal stability of alkaline earth metal carbonates increases…

Q: Differentiate the properties of carbon filter,  ceramics, and micro alloys

A: The properties of carbon filters,  ceramics, and micro alloys are differentiated below.

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A: Gypsum dissociates in water to form its ions.

Q: Which variables must be contolled and in what manner to produce Diamond from Graphite?

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Q: Properties of Liquids and IMF.   Give a brief explanation

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A: A diagram that is used to show the equilibrium conditions between the thermodynamically-distinct…

Q: What is rock salt? Mention its colour and the reason due to which it has this colour ?

A: Salt is a mineral consisting predominantly of sodium chloride, a chemical element that belongs to a…

Q: On what principle is the method of zone refining of metals based?

A: In nature,metals are not found in pure form . They exist in the form of compounds called ores.Metals…

Q: (а) Give an example of zone refining of metals. (b) What is the role of cryolite in the metallurgy…

A: Metallurgy is the process which is more concern with the extraction and isolation of metals from its…

Q: (a) Two unlabelled bottles are suspected to contain beryllium and magnesium. (i) Suggest a simple…

A: we are requiredto distinguish two metal magnesium (Mg) and beryllium (Be)

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A: According to Hess's law, the state functional parameters will have same total value for all the…

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A: A chemical reaction involves the reactants, substrates, catalyst, temperature-pressure conditions,…

Q: Why is it important to use an inert atmosphere to surround the metal when arc-melting titanium?

A: Since high temperature and the flow of electrons would cause the metal to oxidize in a normal…

Q: >Provide a general description of how electrometallurgy is used to extract metals from ores.

A: A technique of extraction of metal from its ore in which electrolysis is used is known as…

Q: What is metallic glass? Describe the features that promote high glass-forming ability in metals.

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A: alloys are the metallic  substance composed  of two or more elements as either a compound or…

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A: Roasting is defined as the process that involves heating of mineral ores (usually sulfides) in…

Q: What is the details programme of the traineeship in mineral processing?

A: details programme of the traineeship in mineral processing:

Q: Give answers of the following. a. Which allotropic forms of carbon are conductor and which are…

A:

Q: 10. Discuss on the possible metals and their alloys which could be an ideal choice for replacement…

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Q: What is the basic principle of zone refining of metals?

A: In nature,metals are not found in pure form . They exist in the form of compounds called ores.Metals…

Q: 4.14 What is the composition, in atom percent, of an O alloy that consists of 5.5 wt% Pb and 94.5…

A: 4.14 Weight % of Pb = 5.5 %Weight % of Sn = 94.5 %The atomic weight of Pb is 207.2 a.m.uThe atomic…

Q: The U.S. Department of Energy has set the benchmark of 6% H by weight for an acceptable hydrogen…

A: given materials : NaAlH4, LiAlH4, LaNi5H6,  TiFeH2

Q: a reaction equation for the synthesis of Sodium hypochlorite

A: Sodium hypochlorite(NaClO) can be synthesised by reacting NaOH with chlorine gas.

Refining of Crude Metal

Metallurgy could be defined as a technique by which metals can be extracted in their pure nature. Extractive metallurgy directs with the route of eradicating the valuable metals from ores and purifying the extracted metals to pure nature. In hydrometallurgy, the metal extraction’s from their ores is done using an aqueous solution. In the pyrometallurgical process, high temperatures are employed to initiate the reactions between gases, molten metals, and solids. In electrometallurgy, the technique is carried in an electrolytic cell.