Why do the alkaline earths have low resistivities?

Q: Why do Selenium and tellurium occur in rare minerals?

A: The reason why Selenium and tellurium occur in rare minerals has to be given,

Q: cassiterite is an ore of ?

A: Ore: It is a natural occurrence of rock in which minerals are present with economically significant…

Q: Specify which MAGNESIUM alloys gain strength by cold deformation and aging, specify how the aging…

A: Cold formation is a method to strengthen the the metal below the recrystalline temperature. Mg alloy…

Q: In acidic solution, hydrogen peroxide reacts with Fe2+ to produce Fe3+ and H2O. Write a balanced…

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Q: The Latimer diagram for nitrogen in acidic solution at 25 °C is shown. Classify each species based…

A: The Latimer diagram shows the the species in decreasing order of oxidation states of N.

Q: Explain why LiFeO2 and Li2TiO3 (rock salt structure) form a wide range of solid solutions with MgO…

A: The ability of two materials to form solid solutions is dependent on their crystal structures, which…

Q: Many transition metals and their compounds are used as catalysts. Given MnO2, FeCl3, Pt, and Ni,…

A: Catalyst are the compounds that lowers the activation energy of reaction to increase the rate of the…

Q: List the important products of the Chlor_alkali process .write one important use of each.

A: Chlor-alkali process is an industrial process in which electrolysis of NaCl can be done.  In this…

Q: How do the transition metals in Period 4 affect the pattern ofionization energies in Group 3A(13)?…

A: Concept introduction: Ionization energy: The required energy to remove an outermost electron from a…

Q: Which of these elements are building-block elements? sodium oxygen calcium iron Opparbon

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Q: Why is beryllium carbonate unusually unstable thermally as compared to the other carbonates of this…

A: Beryllium belongs to group 2 in the periodic table. The carbonates of this group are - BeCO3, MgCO3,…

Q: Would you expect carborundum(SiC) to adopt a diamond structure or one of higher coordination?…

A: Carbon and silicon are the elements of group 14 having 4 valence electrons in its outer most shell.

Q: Explain why the two arene oxides open in opposite directions.

A: Since OCH3 is a +ve mesomeric effect group and NO2 is a -ve mesomeric effect group  Hence the +ve…

Q: An impure magnetite (Fe3O4) sample weighs 0.5023 g. This is converted to Fe2O3 by chemical…

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Q: Which phosphorus nitride NP ,NP^+or NP^2- would be paramagneti

A: Substance which have a permanent dipole moment known as paramagnetic substance and substances which…

Q: Which lanthanide has the maximum number of unpairedelectrons in both its atom and 3+ ion? Give the…

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Q: Calculate the composition, in weight percent, of an alloy that contains 105 kg of iron, 0.2 kg of…

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Q: Name two metals which occur in nature as oxides.

A: Metals are the elements which lose electrons to acquire a stable electronic configuration. When loss…

Q: The most important oxides of iron are magnetite, Fe3O4, and hematite, Fe2O3. One of these iron…

A: Oxidation state is referred as the  total no. of electrons lost or gained by the atom to form a…

Q: Does roasting increase or decrease the mass of sulfides?

A: During the roasting of sulfide ores , sulfides are converted into oxides and sulfur is converted…

Q: Write the balanced equation for the formation of ClF3 gas from the elementalhalogens?

A: When two different halogens reacts together, inter halogen compounds are formed. They can be…

Q: What is the difference between substituted aluminum in silicates and adding sodium as modifier in…

A: Interpretation-  To tell about the difference between substituted aluminum in silicates and adding…

Q: Consider the given Ellingham diagram. Rank the oxides of Mg, Zn, and Al in terms of increasing…

A: The above diagram is temperature vs Gibbs free energy plot. If changeΔG more negative,the metal will…

Q: A sample of pyrolusite weighing 0.6000 g is dissolved in a solution containing 5.00 mL of 6.00 N…

A: Given that 1 mL of KMnO4 oxidise 0.03058 g of FeSO4.7H2O…

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.