When is the Powder metallurgy used?

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

A:

Q: What is the chemistry behind the following: a. Rusting occurs rapidly in moist conditions as…

A: Rusting is an oxidation reaction in which metal reacts with oxygen to form metal oxide of that…

Q: B. What are the effects of adding elements (Ni. Cr, Si and S) on steel?

A:

Q: What safety precautions are neccessary with the disposal of selenium selenite and when handeling?…

A: Selenium is an essential metal for human and other animals, but taking higher doses can be harmful.

Q: >What compound has been historically used to leach gold from gold ores? Why is this process being…

A: The compound that has been used to leach gold from gold ores is sodium cyanide.

Q: Which compound of Ti is the most important industrial product of titanium metal? Describe an…

A:

Q: Show the reduction process of hematite in the blast furnace starting from coke to pure iron using a…

A: Hematite is the ore of iron. In the extraction of hematite, its it is concentrated by washing with…

Q: Which of the following metals is used in solvent stills?

A: To find: The metal which is used in solvent stills

Q: - A . . is an alloy of lowest melting point in that alloy system

A: Alloy is a homogeneous or heterogeneous mixture of two or more than two metals. Alloy has greater…

Q: Using the plot from the previous problem, discuss the effects of manganese on Le toughness of the…

A: Metals forms alloys when they mixed in a definite proportion to get material of desired properties.

Q: elaborate the process of metallurgy

A: Metallurgy is the process of extraction of metals.

Q: Describe how a crucible furnace works, and how it melts the metals, and indicate the hazards and…

A: Answer - Crucible furnaces are one of the oldest and simplest types of melting furnace unit used in…

Q: What are the main reactions for molten iron processing in Blast furnace

A: the main reaction for molten iron in the blast furnace is:

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: Write down the reactions taking place in different zones in the blast furnace during the extraction…

A: In blast furnace, iron oxides are reduced at different temperature ranges. In the lower part of the…

Q: What types of metals are usually purified by the method of zone refining? Give an example.

A: Metals are lustrous elements. They are good conductors of heat and electricity. They are malleable (…

Q: Write the balanced chemical equation for the reaction that occurs when aluminum metal is added to…

A: the chemical reaction when aluminum metal is added to liquid bromine to aluminum bromide,

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: A compound which is prepared from gypsum has the property of hardening when mixed with proper…

A: Organic compounds are the compounds which are mainly composed C and H atoms. The branch of chemistry…

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: The lustre of a metal is due to:(a) its high density(b) its high polishing(c) its chemical…

A: Metallic lustre is due to the mobile electrons present in metals which when de-excites releases…

Q: Which of the elements goes completely into substitution solution with Ni?

A: SUBSTITUTIONAL SOLID SOLUTION:-Solution in which atoms of solute substitute the atoms of solvent at…

Q: (a) Write the principle of electrolytic refining.(b) Why does copper obtained in the extraction from…

A: Write the principle of electrolytic refining.

Q: e. Explain with relevant points about structure, alloying elements and characteristics.

A: Alloying elements are used to alter the chemical and mechanical properties of steel to provide them…

Q: (i) Name the method used for the refining of titanium. (ii) What is the role of Zn in the extraction…

A: i.  Van Arkel method is the method used for the refining of titanium.

Q: Give a brief explanation of this mineral Iron ore

A: Answer - Iron ore - Iron ores are rocks and minerals from which metallic iron can be economically…

Q: What is the function of collectors in the froth floatation process for the concentration of ores?

A: Various processes are used for extraction of minerals. These minerals are very useful for…

Q: Hydro metallurgy of silver

A: Silver is a metal and therefore it is electropositive in nature.

Q: What is the use of process named Vulcanisation?

A: Vulcanisation is the process of treatment of natural rubber with sulphur.  It also includes…

Q: what is lanthanide contraction?

A: The elements having atomic number 57 that corresponds to lanthanum to atomic number 71 that…

Q: Zone refining is used for the:(a) concentration of an ore(b) Reduction of metal oxide(c)…

A: Given options,    (a) concentration of an ore   (b) Reduction of metal oxide   (c) Purification of…

Q: Which metals are found in carbaloy steel?

A: Given,Carbaloy steel

Q: The basic operations applied in metallurgical processes are also based on the type of chemical…

A: Metallurgy: metallurgy is defined as the process of extraction of metal from their ores.   Basic…

Q: >Why was copper one of the first metals that humans used?

A: Copper is considered to be one of the first metals to be used by humans. The main reason for its…

Q: (i) Name the method of refining to obtain low boiling metal like mercury, (ii) What is the role of…

A: Refining consists of purifying an impure metal. It is to be distinguished from other…

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…

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.