What is the role of zinc metal in the extraction of silver?

Q: Describe the equilibrium processes involved in the solvent extraction of metal chelates.

A: Answer - Equilibrium process - Chemical equilibrium, condition in the course of a reversible…

Q: How is lead ion separated and identified in group 1 cation analysis?

A: Qualitative analysis of Lead ion (Pb2+) ; In group I cation analysis, the presence of Pb2+ is…

Q: What are the oxidation numbers of the elements in the nitrite ion?

A: The formula for nitrite ion is NO2-.

Q: In determining the manganese dioxide content of a pyrolusite mineral. A sample of 0.5261 g of…

A: Equation representing reaction of KMnO4 with oxalate: 2 MnO4- + 5 C2O42- + 16 H+ = 2 Mn2+ + 10 CO2 +…

Q: Why metals like potassium and sodium can not be extracted by reduction of their oxides by carbon?

A: Potassium and Sodium are highly electropositive elements. They have positive oxidation state when…

Q: of 15.00 x 10 mA flows for exactly two hours, calculate the number of tin atoms in the metal…

A: Using Faraday's law of electrolysis  Mass = Mit/nF Where, M = molar mass           i = current =…

Q: Discuss the reaction of copper metal with silver ion?

A: The reaction of copper metal with silver ion has to be given.

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

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Q: 2) What is the role of EDTA in determining the hardness of a water sample along with the chemical…

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Q: - A silicate ore contains 12.00% Na,0 and weighs 0.5000 gram. On analysis by the J.L. Smith method,…

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

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Q: Explain the function of sunlight in the bromine reaction.

A: Bromination reaction: The alkane reacts with bromine in the presence of sunlight to form…

Q: 2. Explain the principle of ion exchange adsorption.

A: The adsorption results in the formation of a molecular layer of the adsorbate on the surface.…

Q: What role is played by CO2 in getting pure alumina (A1l2O3) in the extraction of aluminium?

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

Q: Why are sulphide ores converted to oxide before reduction?

A: The main principle of conversion of ores into respective metal is that ores must be changed into…

Q: Why is nitric acid added to sodium extract before adding silver nitrate for testing halogens?

A: In halogen test, small amount of nitric acid is added to sodium extract ( lassaigne's extract)…

Q: Why is boron oxide often added to silica glass?

A: Boron is used in glass manufacturing in the way that addition of boron oxide to glass help in…

Q: how precipitation helps in extracting magnesium from sea water

A: Magnesium chloride is naturally extracted by seawater by precipitating it to magnesium hydroxide.…

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: Describe the principle involved in each of the following processes :(i) Zone refining of metals(ii)…

A: (i) Zone Refining of metals : The principle of zone refining is based on the principle that…

Q: Explain the role of each of the following in the extraction of metals from their ores :(i) CO in the…

A: Extraction of metals: Extractive metallurgy is the practice of removing valuable metals from an 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: What is the purification methods that are used for Cobalt (II) sulphate and explain them

A: If purifying by electrolysis, an aqueous sulfate solution at 50 to 70°C is usually used with a lead…

Q: On what principle is the method of zone refining of metals based?

A: In nature,metals are not found in pure form . They exist in the form of compounds called ores.Metals…

Q: The reaction 2A(g) ⇌ B(g) is found to have Kp = 24.5. What would the equilibrium constant be for…

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Q: Explain the process of standardizing solution of silver nitrate using hydrochloric acid.

A: We need to standardize a solution of silver nitrate using hydrochloric acid. For this, we are…

Q: Write and balance the equation for the reduction of iodate by hydrogen sulfite ions to give iodide…

A: Balance the equation for the reduction of iodate by hydrogen sulfite ions to give iodide and sulfate…

Q: What is the best synthesis and purification method with regards to cobalt(II) sulphate (CoSO4.7H2O)

A: Cobalt(II) sulphate can be synthesized by the reaction of cobalt metal with aqueous solution of…

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: Roles of carbon IV oxide in soft drinks

A: Carbon (IV) oxide is a chemical compound with the formula CO2. It is commonly known as carbon…

Q: Describe the composition of Glass electrode used for the pH measurements?

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Q: Why does the colour of copper sulphate solution change when an iron nail is dipped in it?

A: The color of the copper sulfate solution is blue. But when an iron nail is dropped into the solution…

Q: what are the significant applications of extraction in the industry.

A: Answer - Extraction -When the solute (liquid or solid) is add to a heterogeneous system of two…

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: What is the role of NaOH in the metallurgy of aluminium?

A: Given: The extraction of aluminium is done from its ore called bauxite, Al2O3.2H2O. There are…

Q: Explain the role of each of the following :(i) NaCN in the extraction of silver(ii) SiO2 in the…

A: To explain the role of each of the following : (i) NaCN in the extraction of silver (ii) SiO2 in the…

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…