(i) Indicate the principle behind the method used for the refining of zinc.(ii) What is the role of silica in the extraction of copper?(iii) Which form of the iron is the purest form of commercial iron?

Q: Without consulting any source other than a periodic table, what relative level of toughness would…

A: Ti -Titanium is the transition metal having atomic number 22.  Ti can loses its two electrons to…

Q: estimate the fraction of electrons above fermi level in sodium and copper at room temperature

A:

Q: What class of element is obtained by oxidation of a mineral? What class of element is obtained by…

A:

Q: (i) Name the method of refining of metals such as Germanium.(ii) In the extraction of Al, impure…

A: Refining is a process of eliminating impurities to obtain metals of high purity. These impurities…

Q: The key reaction (unbalanced) in the manufacture of syn-thetic cryolite for aluminum electrolysis is…

A: The balanced chemical equation is as follows, The moles of Na3AlF6 is calculated from aluminium…

Q: What is the mass percent of silicon in the mineral orthoclase (KAlSi3O8)?

A: Mass percentage = mass of the atommass of compound ×100%

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

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

Q: What is the significance of leaching in the extraction of aluminium ?

A:

Q: Write the role of the following: (i) CO in the purification of nickel (ii) Graphite rod in the…

A: The Mond’s process is used for the purification of nickel. This process is also called as carbonyl…

Q: What are the silicate minerals, and enlist the industries using them as raw materials?

A: Silicate minerals are the rock making minerals that are made up of silicate groups. Or we can say…

Q: Write the chemical equation that describes the dissolution of gypsum in water and describe how many…

A: Gypsum dissociates in water to form its ions.

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

A:

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

A: Carbon exists in three forms as follows: Graphite Diamond Fullerene Diamond is the hardest form of…

Q: What role is played by CO2 in getting pure alumina (A1l2O3) in the extraction of aluminium?

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

Q: (a) Giving examples differentiate between calcination and roasting.(b) What is the role of cryolite…

A: Hello. Since more than one question has been asked, the first question shall only be answered in…

Q: The oxidation number of platinum in Pt(H2O)4 ^+2 is

A:

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: Predict the structure of each of the following silicate minerals (network, sheets, double chains,…

A: a) In apophyllite (KCa4(Si8O20)F.8H2O), the oxygen and silicon ration is 2.5:1. From the table, the…

Q: (i) Indicate the principle behind the method used for the refining of Nickel. (ii) What is the role…

A: The process used for metal extraction in the pure form is named Metallurgy. Metals are extracted…

Q: what is the role of silica in the metallurgy of copper?

A: The most important ore of copper found on the earth is the copper-pyrite ore whose chemical formula…

Q: What class of element is obtained by oxidation of a mineral?What class of element is obtained by…

A:

Q: A slag sample is known to contain all of its iron in the forms of FeO and Fe2O3. A sample of 1,000 g…

A: Redox reactions are the reaction that involves simultaneous oxidation and reduction reactions. A…

Q: How can you separate alumina (Al2O3) from silica present in bauxite ore? Write the chemical…

A: Filtering of aluminum from bauxite: Finely powdered bauxite metal is processed with a watery…

Q: a) Apply MOT to describe bonding in [Fe(H2O)6]³* and [Fe(CN)6]*- b) Describe extraction of uranium…

A: Answer (a) The molecular orbital theory states that each atom tends to combine together and form…

Q: Why does silica operate at highly temperature

A: Silica is widely used in industry. Since it can withstand high temperature.

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: What is the role of CO2 in the extractive metallurgy of aluminium from its ore?

A: The entire scientific and technological processes involved in the extraction and isolation of a pure…

Q: Using Table 22.1, predict the structure of each of the fol- lowing silicate minerals (network,…

A: Following structures are

Q: Describe the role of the following :(i) SiO2 in the extraction of copper from copper matte(ii) NaCN…

A: Introduction- Metallurgy is the branch of chemistry that deals with mining of metals and their…

Q: What is the role of zinc metal in the extraction of silver?

A: A separation method involving the separation of a material from a matrix is called as extraction…

Q: Describe the preparation of (i) Potassium dichromate from sodium chromate

A: Describe the preparation of (i) Potassium dichromate from sodium chromate

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: What are purification methods of Cobalt (II) Sulphate?

A: If purifying by electrolysis, an aqueous sulfate solution at 50 to 70°C is usually used with a lead…

Q: What is the role of NaOH in the metallurgy of aluminium?

A: Given: The extraction of aluminium is done from its ore called bauxite, Al2O3.2H2O. There are…