(a) Write the principle of method used for the refining of germanium.(b) Out of PbS and PbCO3 (ores of lead), which one is concentrated by froth floatation process preferably?(c) What is the significance of leaching in the extraction of aluminium?

Q: Write the equation for the reaction of:(a) Iron with steam(b) Calcium with water(c) Potassium with…

A:

Q: Describe the role of(i) NaCN in the extraction of gold from gold ore.(it) SiO2 in the extraction of…

A:

Q: Which of the following substances is added to the blast furnace (together with the iron ore and…

A: Iron contains impurities of silica(SiO2).

Q: A blast furnace uses Fe₂O₃ to produce 8400. t of Fe per day.(a) What mass of CO₂ is produced each…

A: a) The chemical reaction that occurs in the blast furnace to produce iron is as follows,

Q: What is the significance of leaching in the extraction of aluminium ?

A:

Q: How are each of the following involved in iron metallurgy:(a) slag; (b) pig iron; (c) steel; (d)…

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: Explain the role of each of the following: (i) NaCN in the extraction of silver. (ii) Si02 in the…

A: Extraction of metals: As metals are found in mines in combined state in ores. It is necessary to…

Q: (a) In the industrial production of iron, what is the reducing substance loaded into the blast…

A: The extraction of a metal from its ore is called metallurgy. Metallurgy involves many steps for the…

Q: Semiconductors made from elements in Groups 3A(13)and 5A(15) are typically prepared by direct…

A: Given: Mass of molten gallium     = 32.5 g Volume of molten gallium = 20.4 L Temperature…

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: Explain the following observations: (i) Sulphur has a greater tendency for catenation than oxygen.…

A: (i) The tendency of catenation of sulfur is higher when compared to oxygen because the size of…

Q: Using balanced chemical equations suggest the synthesis of sodium tetraboroaluminate from H2, Na,…

A: Sodium tetraboroaluminate, also known as sodium aluminate tetraborate or Na2[B4O5(OH)4]·8H2O, is a…

Q: Write the formulas for the following compounds, andindicate the oxidation state of the group 4A…

A: Since your question has multiple subparts, we will solve only first three subparts for you. If you…

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: (i) Indicate the principle behind the method used for the refining of Nickel. (ii) What is the role…

A: The process used for metal extraction in the pure form is named Metallurgy. Metals are extracted…

Q: The final step in the smelting of FeCuS₂ is Cu₂S(s) +2Cu₂O(s) →6Cu(l) +SO₂(g)(a) Give the…

A: Redox reactions are the combination of reduction and oxidation reactions. The type of reaction in…

Q: Describe the nature of electrical conduction in (a) germa- nium doped with indium and (b) cadmium…

A: (a) Germanium doped with indium: When germanium is doped with indium, it creates new levels at the…

Q: Describe the preparation of KMn04 from pyrolusite ore (MnO4). How does the acidified permanganate…

A: The reactions in which one species is oxidized and other species is reduced are known as redox…

Q: Describe the role of the following :(i) NaCN in the extraction of silver from a silver ore(ii)…

A: Given process, (i) NaCN in the extraction of silver from a silver ore(ii) Iodine in the refining of…

Q: Write the formulas for the following compounds, andindicate the oxidation state of the group 4A…

A: (a) The formulas for Silicon dioxide is SiO2. The oxidation state of the group 4A element Si is -4.…

Q: The lead(IV) oxide used in car batteries is prepared by coat-ing the electrode plate with PbO and…

A: Expected number of moles of oxygen as per the molecular formula of PbO2 is 2 moles O.The actual…

Q: (a) Write the principle involved in the following :(i) Zone refining of metals(ii) Electrolytic…

A: (a) The principle involved in the following process is as follows: (1) Zone refining of metals: This…

Q: Name the catalyst used in the following process :(a) Haber’s process for the manufacture of NH3…

A: Haber's process is used for the making of ammonia gas (NH3). This process is mainly used to produce…

Q: Write the reactions involved in the following processes: (i) Leaching of bauxite ore to prepare pure…

A: Given processes, (i) Leaching of bauxite ore to prepare pure alumina. (ii) Refining of zirconium by…

Q: Give reasons:(a) Platinum, gold and silver are used to make jewellery.(b) Sodium, potassium and…

A: (a) Platinum, gold and silver are used to make jewellery.  The reason for the above is Platinum,…

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: (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: Using Table 22.1, predict the structure of each of the fol- lowing silicate minerals (network,…

A: Following structures are

Q: The disproportionation of CO to graphite and CO₂ is ther-modynamically favored but slow.(a) What…

A: a) Disproportionation reaction of CO to graphite and CO, is thermodynamically favourable reaction…

Q: Magnesium hydride possesses a rutile lattice. (a) Sketch a unit cell of rutile. (b) What are the…

A:

Q: Describe the role of the following :(i) SiO2 in the extraction of copper from copper matte(ii) NaCN…

A: Introduction- Metallurgy is the branch of chemistry that deals with mining of metals and their…

Organometallic compounds of d-block elements

The transition metals can form complexes since they have vacant d orbitals. They are also termed Coordination compounds. The organometallic compounds of the transition metals could be used as catalysts as well as reagents. For example, organocadmium, organozinc, organocopper, Grignard are used as the reagents for several reactions. Most of the complexes of organo transition metals are used as catalysts for many organic transformation reactions.