Discuss the preparation, properties and uses of (a) Celluloid

Q: Account for the relative band gap energies of semiconductors interms of periodic trends?

A:

Q: Describe the preparation of potassium permanganate. How does the acidified permanganate solution…

A: The chemical name of Potassium permanganate is KMnO4. It is an inorganic compound and dark violet in…

Q: of

A: Step-1   4FeCr2O4 + 8Na2CO3 + 7O2 → 8Na2CrO4 + 2Fe2O3 + 8CO2   Step-2   2Na2CrO4 + 2H+  →  Na2Cr2O7…

Q: 1. Write the chemical equations for the reaction of alkaline permanganate with unsaturated…

A: unsaturated hydrocarbon has double or triple bond which increases its reactivity.

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: Discuss the reasons for the observation of dominant covalent bonding (but not ionic bonding) in…

A: The interaction present between the atoms and binds them together is known as the bonding. There are…

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: By means of Lewis structures demonstrate the formation of a group silicate, a cyclotetrasilicate as…

A: Silicate is a group of compounds containing silicon and oxygen. They are the large polymeric anionic…

Q: Properties of Liquids and IMF.   Give a brief explanation

A: There are three main states of matter - solid, liquid, and gases. The liquid is a state of matter in…

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: You would like to select a material for electrical contacts in an electrical switching device which…

A: The materials that have to be used for electrical contacts in an electrical switching device must…

Q: What methods could be used to determine the structure of polyiodides? Discuss how could they…

A: Answer -  polyiodides - The polyiodides are a class of polyhalogen anions composed entirely of…

Q: Explain the terms of the Nernst equation.

A: The relation between electrical and chemical change is studied under electrochemistry. Two types of…

Q: Explain why the energetics of dissolution can be different for elements in the same group?

A: Dissolution energy is defined as the amount of energy released when a solute is dissolved in a…

Q: What is the name of the reference that contains the topic of synthesis and characterization of…

A: Liquid crystals are the state of matter that can be defined as the intermediate form between solid…

Q: Complete the following Latimer diagram Can iodine be obtained by reaction between iodide and iodate…

A: According to Hess's law, the state functional parameters will have same total value for all the…

Q: Outline the principles of refining of metals by the following methods :(i) Distillation(ii) Zone…

A: (i) Distillation: Zinc and Mercury have an extremely low boiling point. So on heating them they very…

Q: Write a balanced chemical equation for the decomposition of CaCO3 on heating and explain what the…

A: ✓CaCO3(s)=CaO(s)+CO2(g) ✓ following are two important sources of carbon dioxide when this Reaction…

Q: A brief description of the range of silicate ions that can be form given in giligot ure

A: This is a multiple questions .According to Guidelines, in multiple questions, we can solve only the…

Q: 4.The process of removing SO2 by injecting powedered limestone which is converted to calcium oxide?

A:

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: Geosciences are very versatile. This fact rests or the finding that the number of silicate minerals…

A: a) The step by step reaction sequence from silicic acid to tricyclosilicate is shown below-

Q: What is meant by the term ‘pyrometallurgy’?

A: A process that is used for the extraction of metals in their pure form is known as metallurgy.…

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

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

Q: What do the silicate structures include?

A: Silicates are inorganic compounds of silicon ,having oxygen attached with it. Silicates are…

Q: 2. What is the effect of the nature of solvent on the electrical conductivity of solutions?

A: Conductivity in an electrolytic solution is due to movement of ions. More the ions more the…

Q: What is the details programme of the traineeship in mineral processing?

A: details programme of the traineeship in mineral processing:

Q: what is The

A: Nanomaterials are chemical substances having dimension of 1-100 nm. They are by-products of…

Q: Write a balanced ionic equation to represent the oxidation of iodide ion (I- ) by permanganate ion…

A: the redox couples are divided into two half-reactions: one for the oxidation, and one for the…

Q: How does the maximum oxidation number vary across aperiod in the main groups? Is the pattern in…

A: Main groups include s and p block elements. s block includes group 1 and 2 and p block includes…

Q: Give a proposal for the purification of Cobalt(II)sulphate CoSO4.7H2O

A: Cobalt (II)Sulphate CoSO4.7H2O ,is an important salt of cobalt , it holds important place in…

Q: The U.S. Department of Energy has set the benchmark of 6% H by weight for an acceptable hydrogen…

A: given materials : NaAlH4, LiAlH4, LaNi5H6,  TiFeH2

Q: Suggest any examples of PAT Tools used for Crystallisation of Small Molecule Drugs ( SMD )…

A: For crystallisation of small molecule drug (SMD) purification , generally  use spectroscopic…

Q: b For the reaction of chlorine with cold dilute aqueous sodium hydroxide: i write a balanced…

A: During the reaction of chlorine with cold and dilute aqueous sodium hydroxide it forms chloride and…

Q: What is linkage isomerisation and why can it be important?

A: Linkage isomers are two or more coordination compounds in which the donor atom of at least one of…

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.