Percent purity that potassium trioxalato-aluminate should yield.

Q: Explain the observed properties of Corundum (-Alumina) based on the features of its crystal…

A:

Q: How many kilograms of chalcocite (Cu2S) needs to be mined to get 872 g of copper?

A: The given data: The mass of copper = 872 g To determine = The mass of Cu2S in Kg.

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: Questions Describe the steps involved in the preparation of a metallographic sample: Sectioning…

A: Metallographic examination utilises inverted optical light for inspection of material grain Sizing…

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: Review the Chemistry of Metallocene using Ferrocene as an example

A: Metallocene falls under the category of organometallic compounds. Organometallic compounds are those…

Q: what is difference between Gem dihalide and Gem trihalide?

A: Gem dihalide: Two halide groups are attached to the same carbon atom is called Gem dihalide.

Q: how is limestone used in Fe extraction?

A: Extraction:The way of separation of a desired substance mixed with other substances is known as…

Q: Predict what group solid Gold (Au) would belong in if you tested it for conductivity in and out of…

A: Gold will not dissolve in water.  Gold is one itself on of the best conductors of electricity as the…

Q: can solid palladium reacts with zinc sulfate solution

A: A chemical displacement reaction is the one in which a highly reactive metal displaces the less…

Q: elaborate the process of metallurgy

A: Metallurgy is the process of extraction of metals.

Q: Calcination, roasting, and smelting are three pyrometallurgical processes. Compare and contrast the…

A: Calcination is a pyrometallurgical process of heating ore in the absence of air or limited supply of…

Q: Reasons why ore must be screened?

A: Ores must be screened due to the following reasons.

Q: state the physical and chemical properties of compound LUTEOLIN (as much as it have)

A: Luteolin is a naturally-occurring flavonoid, with potential anti-oxidant, anti-inflammatory,…

Q: nich of the follov (choose smectite vermiculite humus

A: Colloids are the example of a mixture that contains microscopically small insoluble particles…

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: When is the Powder metallurgy used?

A: Powder metallurgy is used in the materials processing with high melting points. They are highly…

Q: Determine the highest possible oxidation state for element Re

A: Oxidation state: Oxidation states are a combination of numbers, positive, and negative signs that…

Q: (i) Name the method of refining to obtain silicon of high purity.(ii) What is the role of SiOz in…

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

Q: Approximate percent potassium there should be in potassium tris(oxalato)aluminate(III).

A:

Q: Does metallic tin react with HCl?

A: The metals react with acids to form salt and liberate hydrogen gas. Tin (Sn) is a group 14 element…

Q: How sodium is used for extraction of silicon and boron?

A: Extraction of silicon:Silicon dioxide is extracted from waste colored glasses by alkali using sodium…

Q: What is Hydroboration ?

A: In hydroboration reaction, B and H is attached to an unsaturated double bond. B is attached to less…

Q: What are the two elemental states of iron?

A: 13- The chemical symbol of iron is Fe

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: Write the balanced equation for the formation of ClF3 gas from the elementalhalogens?

A: When two different halogens reacts together, inter halogen compounds are formed. They can be…

Q: Write defect reactions for FeO and NiO. What oxide would form from each of the defect reactions?

A: Solid defects are of three types: 1. Stoichiometric defects 2. Non-stoichiometric defects 3.…

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: Write detailed notes on a) Sodium Sulphate b) Sodium silicate c) Alum

A: The given compounds sodium sulfate, sodium silicate, and alum are inorganic compounds that show a…

Q: what is lanthanide contraction?

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

Q: Write any four applications of Aluminum Alloys

A: Alloy :  Homogeneous mixture of a metal with other metals is called as an alloy. Some common…

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: What is one example (that we have looked at) of how a mineral ore is formed? What very specific…

A: Deposits of minerals form when a medium that contains and transports mineral-making ore releases and…

Q: Define the following terms:(i) Roasting (ii) Calcination

A: Ores present in nature in rocks formed and it contains valuable metal. Like ore of Zn is ZnS. The…

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: If 55 g of SiO2  glass is placed into 111 L of 0.032 M HF, is there enough HF to dissolve all of the…

A: The balanced equation for the reaction is given below.

Q: How can we convert glass into quartz?

A: Glass is an amorphous in nature while quartz is crystalline.Quartz can be converted into glass by…

Q: Why was HCl added for the flame test of barium?

A: Interpretation: To explain why HCl was added for the flame test of barium.

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.