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

Q: Among Fe, Cu, Al and Pb, which metal (s) can not be obtained by smelting.

A: The arrangement of metals according to their decreasing order of reactivity is termed as reactivity…

Q: Write the Chemical reactions taking place in different zones in the blast furnace for the extraction…

A: The chemical reaction which takes place in different zones in the blast furnace for the extraction…

Q: Why metals like potassium and sodium can not be extracted by reduction of their oxides by carbon?

A: Potassium and Sodium are highly electropositive elements. They have positive oxidation state when…

Q: Discuss the Following: Why although a non-metal, graphite is often used as an electrode material?…

A: Doping is the process of addition of metal that causes enhancement in conducting properties of the…

Q: Give some physical and chemical properties of Ferrous Oxalate

A:

Q: Like heavy water (D₂O), so-called “semi-heavy water”(HDO) undergoes H/D exchange. The scenes below…

A: (a)

Q: Account for the following : (a) Copper shows its inability to liberate hydrogen gas from the acids.…

A: Oxidation is the process that involved the loss of electrons and oxidized to cation.  Hence when a…

Q: copper can be extracted by hydrometallurgy but not zinc. explain.

A: The reduction potential of Zinc is lower than that of copper. In hydrometallurgy, in order to…

Q: A Downs cell operating at 77.0 A produces 31.0 kg of Na.(a) What volume of Cl₂(g) is produced at 1.0…

A: The sodium metal extraction is done using Down’s cell, which involves the electrolysis of mixture of…

Q: How are each of the following involved in iron metallurgy:(a) slag; (b) pig iron; (c) steel; (d)…

A:

Q: How many grams of rhodium (Rh) can be deposited on a ring used as a cathode by electrolysis of a…

A: Rh3+  + 3e-   -----> Rh Equivalent mass of Rh , E = M/n.f = 103/3 g/eq = 34.33 g/eq Z = E/F =…

Q: Explain the role of each of the following: (i) NaCN in the extraction of silver. (ii) Si02 in the…

A: Extraction of metals: As metals are found in mines in combined state in ores. It is necessary to…

Q: Consider the photochemical isomerization A= B. At 650. nm, the quantum yields for the forward and…

A:

Q: Account for the following: (i) PCl5 can act as an oxidising agent but not as a reducing agent. (ii)…

A: The following Statement are given as:-

Q: Explain briefly the structure of matters affecting the metallurgy of metals?

A: Metallurgy is the  branch of science and technology of extracting and refining metals from their…

Q: why does enrgy have to be supplied to a chemical in order to break the IMFs between the molecules in…

A: In any chemical reaction reactants are converted into products.

Q: Divalent manganese reacts with oxygen according to the following chemical reaction: Mn2 +1/2 O2 (9 +…

A:

Q: 1. Suggest why it is possible to synthesize many boron-nitride analogs of aromatic carbon compounds,…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: (a) What are the three commercial products formed in the chlor-alkali process? (b) State an…

A: Chlor-alkali process It is the process of electrolysis of brine solution. At cathode, H+ gets…

Q: Explain the following observations: (i) Ammonia has a higher boiling point than phosphine. (ii)…

A: Ammonia possess hydrogen bonding due to the presence of covalent bonds between nitrogen and…

Q: The ore alvite often has a formula: (Hf, Th, Zr)SiO4.xH2 Suggest why Thorium would be an…

A: CONCEPTIsostructural: Isostructural crystals are those that have similar chemical structure , not…

Q: Describe the process for refining iron and its environmental impacts, and suggest strategies for…

A: To, a) Describe the process of refining iron b) Describe environmental impacts c) Suggest strategies…

Q: Illustrate the amphoteric nature of aluminum hydroxide by citing suitable equations.

A: The property of any compound behaving as an acid when reacted with base and behaving as a base when…

Q: Based on the information shown in the attached image, which of the following statements are CORRECT?…

A: The process of gain of electrons by a species is termed reduction whereas the loss of electrons is…

Q: Borazine, (BH)3(NH)3, is an analog of C6H6, benzene. It canbe prepared from the reaction of diborane…

A: The balanced chemical equations for the production of borazine has to be given.

Q: Explain giving a reason each for the following situations: (i) In aquesous medium HCl is a stronger…

A: The chemical reactivity of a compound depends upon the strength of the bond between atoms and…

Q: Why is it important to know the reactions of alkali and alkaline metals in metallurgical processes?

A: Alkali metals are group 1 elements like potassium, sodium, Lithium, cesium, rubidium etc. Alkaline…

Q: (a) Si in SiO2 (b) N in NH4+ (c) N in NH3 (d) N in N2O

A:

Q: Write the balanced net ionic equation for the reaction of FeCl3 with NaOH in aqueous solution.…

A:

Q: (g) Differentiate between hypereutectoid and hypoeutectoid alloys

A:

Q: Write the reactions taking place in different zones of the blast furnace to obtain Iron.

A: The process of purification of metals and formation of alloys is carried out by metallurgy. The…

Q: Consider the given Ellingham diagram. At 1000 °C, which among Mg, Al, and Zn can be extracted from…

A: Given:  Ellingham diagrams are plots of standard free energy change versus temperature for the…

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.