Which of the following metals is used in solvent stills?

Q: Which of the following is not a feature that primary standard substances should have. A. must be of…

A: Welcome to bartleby !

Q: Which of the following casting technique is used for a metallic product that requires high…

A: Die - casting, investment casting, plaster casting, and sand casting, each provide their own unique…

Q: Explain the process of wet adsorption technique for control of NOx and SOx emissions?

A: Nowadays the extent of polluted particles increases in the atmosphere every day. To control the…

Q: Describe how to prepare 1L of 150.0ppm cu2+ using cu metal

A: We have to prepare a solution where the concentration of copper in the solution is 150 ppm. We hyave…

Q: Name the depressant which is used to separate ZnS and PbS ores in froth floatation process.

A: The role of depressant in froth flotation process, silica in the metallurgy of copper and cryolite…

Q: Which are true for polarography? Polarography is amperometry conducted with a dropping Hg electrode.…

A: Option C is true Statement 4 is true as we use the dropping mercury electrode as the working…

Q: Which of the following is NOT a dehydrating agent?    A)  plaster of paris    B)  phenol    C)…

A: In this question we have to find which is not dehydrating agent. Explanation and answer given below.

Q: Discuss Quantitative aspects of Electrolysi/

A: Electrolysis is a process of decomposition of ionic compounds into their constituent ions on passing…

Q: The following is the brief summary of procedures for Expt. 8: Step 1: The unknown stock solution was…

A: Given: aliquot 1 is prepared by diluting unknown stock to 50 mL aliquot 2 is made by mixing 10 mL of…

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: Copper matte is charged into a silica lined converter in extraction of copper. What is the role of…

A: Copper matte is the mixture of Cu2S and little amount of FeS.

Q: Discussion of the result of the Charpy test on Mild steel & Carbon steel

A: Charpy test determines the toughness or impact strength of the material in the presence of a flaw or…

Q: FAlpOLSdkkcb8p7Lki9hSE-PEqyqO02a33Gom9YvugXu6b5uYkOPEUw/formResponse plify ern. Karely 1. Serena…

A: Which of the diagrams to the right shows the repeating groups of atoms that make up samples Serena…

Q: True or False 1. Magnetite is not susceptible to residual concentration. 2.Copper is susceptible to…

A: Residual concentration is the accumulation of valuable minerals on rocks or surfaces which has been…

Q: 12- Metallic compounds aren't eliminated from crude as metals, and they're usually just a bother if…

A: Metallic compound form a tiny composition of crude as metal but they need to be eliminated as they…

Q: What is oxidiation number?

A: Oxidation number: it is defined as the charge (real or imaginary) when an atom appears to have when…

Q: The color of the flame to detect the presence of iodoform *

A: The iodoform test is considered to be a qualitative test which is used to test the presence of…

Q: What volume of 0.10 M H2C2O4 would be required to remove the rust stain weighing 1.0 grams?

A: Molarity can be defined as the number of moles of solute dissolved per liter of the solution It can…

Q: Calculate the concentration of the EDTA solution, please show working out.

A: mass of Zn metal taken = 1.0 g  mole of Zn metal = mass molar mass = 1.0 g65.39 g / mole= 0.0153…

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: Briefly explain the anodizing process with a neat diagram. b). Write the application of anodizing…

A: (a) Anodizing is a process in which metallic surface of a metal converted into a good, useful,…

Q: What do you think is a limitation of the flame test in identifying metal ions in solution?

A:

Q: 17. This is used as intermediate to produce malleable cast iron. * O Grey cast iron White cast iron…

A:

Q: AG° and DOr ore equal when

A: The ΔG° is the standard Gibbs free energy. The ΔG is the Gibbs free energy. The relation between the…

Q: What is chemical reduction (only reduction, not redox) and chemical dechlorination in chemical…

A: Reduction could be defined by three process and they are, 1) Gain of electron 2) Loss of Oxygen 3)…

Q: Anode deposition technique is used to prepare thin films of polymers. * true OError

A: Yes ,thin film of polymer is deposited on anode in this method.

Q: Guide Questions 1. What causes the color to appear in each element upon subjecting to a flame? 2.…

A: For the colour to appear in each element the main principle involved it the excitation of electrons…

Q: What is the effect of stirring on supercooling? why?

A: Stirring increases the movement thereby increasing the kinetic energy of the molecules, although the…

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: anodizing process with a neat diagram. b). Write the application of anodizing process.

A: Anodizing is an electrochemical process which converts the metal surface into a decorative, durable,…

Q: A colorless crystalline compound when dissolved in water förmed a colorless solution. This compound…

A: The required answer is as follows.

Q: What is the chemical name of washing soda? Name three raw materials used in making washing soda by…

A: Washing soda is a common substance used in our day to day life. The chemical name of washing soda is…

Q: What will be the ideal precipitating agent in gravimetric analysis? Select one: O React to all…

A: In this analytical technique, a precipitating agent is added to form precipitate of the analytical…

Q: What is the safety precaution associated with handling the crucible, clay triangle, and tripod.? At…

A: A clay triangle is a piece of laboratory apparatus that is used to support a crucible being heated…

Q: Determine the percentage of iron in a sample of limonite from the following data: weight of sample =…

A: The ratio of mass of one element to the total mass of the sample is termed as mass percentage. The…

Q: hot coffe stored in well insulated thermos flask is example of?

A: Systems can be classified into three types. They are  Open system -  A system which can exchange…

Q: For indicator electrodes, which statements are true? I         Indicator electrodes are made from…

A: Given: statements about indicator electrodes. To find: which statements are true.

Q: How to prepare the following given a free choice of normal laboratory reagents or any equipment:…

A: Laboratory reagent: These reagents are man-made chemical species which is prepared in laboratory…

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.