diffrentiate between cast iron and pig iron.

Q: 6 The graphite anodes have to be replaced regularly. Why is this? 7 Why is it so much more…

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

Q: 6-Soluble in ferrite and increases yield strength, tensile strength, toughness and hardness  It is…

A: Steel is made up of Fe, C, V, Si, Ni, Mn, Cu, Cr.

Q: sample of pig iron contains 3.4 % C, 2% Si, 2% P. The remainder being iron. Discuss briefly how…

A: Steel is important construction material and has high tensile strength. steel is used for making…

Q: When found in nature, which of the following metal ions would prefer to bind to sulfide rather than…

A: The general chemical formula of sulfide minerals is : AmSn. Where, A is metal  S is sulfur m,n are…

Q: >Name three advantages of making metal components from the powder metallurgical process.

A: The important three advantages of Powder metallurgy are given below.

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: The best conductor for electron flow is what type of metal?  a. tin b. bronze c. copper d.…

A: Given, a. tin b. bronze c. copper d. silver

Q: how many iron atoms are in a mold of this alloy

A:

Q: 1. Write a short description about the physical and chemical properties of a copper at standard…

A:

Q: What is the coordination number of a metal ion in a complexion? How does it differ from oxidation…

A: Coordination number is defined as the number of the ligands which are immediately surrounded or…

Q: describe the important features of the microstructure for low carbon steel, medium carbon steel…

A: We need to discuss about different types of iron and steel.

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

A:

Q: A basic lining is given to a furnace by using:(a) Calcined dolomite(b) Copper sulphate(c)…

A: The metallic compounds which are found in nature, called as minerals whereas the minerals which can…

Q: Name the principal ore of aluminium. Explain the significance of leaching in the extraction of…

A: Aluminium is generally extracted from bauxite ore.

Q: How can evacuated the hot gases formed by reactions of the molten metal in die casting?

A: When metal parts of certain geometry are to be produced at a faster rate, die casting process is…

Q: What is chrome plating or electroplating? Briefly explain how this process works.

A: The chrome plating can provide corrosion resistance and helps in easing the cleaning procedures. It…

Q: Give reasons, why copper is used to make hot water tanks and not steel (an alloy of iron)

A: Copper is used to make hot water tanks. Steel reacts with steam.

Q: White three important properties of aluminium which are responsible for its great demand in…

A:

Q: Which gases are used as shielding gases in tig welding?

A: Given,  Which gases are used as shielding gases in tig welding = ?

Q: What are the chemical process required to extract steel ingot from iron ores using naturally…

A: When any metal ore is passes Through chemical process and we get pure metal as product with lower…

Q: Which method is employed for extracting copper from low grade ores and scraps?

A: reduction of ores -by three step-Reaction of the ore (over quite a prolog and on a huge scale) with…

Q: Name three common forms in which metals occur is nature. Explain the interaction between metals and…

A: The three common forms is which metals occur in nature are given as, 1. Sulphide form – copper…

Q: Why copper is used to make hot water tanks and not steel?

A: This is because steel contains iron which reacts with steam and form iron oxide.

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: Name the method used for the refining of titanium metal.

A: Titanium is a d block element with chemical symbol Ti. It is very light as well as a strong element…

Q: Aluminum is the most abundant metal in the earth's crust. It is also a common household utensi…

A: A physical change is observed when matter changes its form/ phase but the chemical identity of the…

Q: Define and compare the terms conductive, insulating, and semi-conductive.

A: To define any element whether it is conductive , insulating and semi-conductive in nature there…

Q: 22 ent, when present in large amounts, causes steel to become brittle and unworkable:

A:

Q: A manufacturing company is trying to produce a lightweight but strong cart for use by home gardeners…

A: The cart would use the same volume of metal, no matter which one it was made of  If weight were the…

Q: The earthy impurities associated with mineral used in metallurgy are called(a) Slag(b) Flux(c)…

A: Gangue is the earthly impirity associated with minerals.

Q: Which metals are found in carboy steel?

A: Steel is an alloy. Alloy is a mixture of two or more metals. The alloy has different properties than…

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: Which metals are found in Monel steel?

A: Monel steel is an alloy. This alloy is mainly composed of nickel (Ni) and copper (Cu) which is 72%…

Q: Explain about passivation in metals

A:

Q: What phase occurs when a soldering iron prepares liquid solder from solid metal?

A: Soldering is a process in which two or more items are joined together by melting and putting a…

Q: What is added to molten iron to make steel? * O A small amounts of carbon B limestone and coke C…

A: Blast furnace is a large cylindrical object made up of the heated bricks which is used for the steel…

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.