Explain process of electroplating. 

1 Answer

Answer :

Process of Electroplating:- 

image

A DC current passed through a solution of chemical compound then the solution can be dissociated into its constituent’s parts & deposition of metal takes place on the cathode. Metal is the constituent part of the solution. The solution used for electrolysis due to which electroplating is to be carried out is known as electrolyte or salt solution. In such a solution each molecule of the substance dissolved is negatively charged. Electroplating is carried out with a desire to coat particular metal on the surface of other metal. At first, the orticle be coated is properly cleaned. Then it is made cathode. The metal of which coating is desired is taken in pure form as a strip & it is connected to anode. In an electrolytic bath, Solution of the salt of the pure metal to be coated is taken By closing the key. M+ will move towards cathode, accept the electron, get neutralized & depositioned as metal .X- will move towards anode. Take equipment amount of M+ & from its salt. Again it dissociates & process is continued till pure metal goes into solution. 

Related questions

Description : With the help of neat diagram. explain the concept and principle used in electroplating. 

Last Answer : Process of Electroplating:-  A DC current passed through a solution of chemical compound then the solution can be dissociated into its constituent's parts & deposition of metal takes ... its salt. Again it dissociates & process is continued till pure metal goes into solution.

Description : What is the main purpose of electroplating?

Last Answer : Protecting  reactive  metals  from  corrosion.

Description : Low volt, High Amp current?

Last Answer : Imagine a car battery. They are 12-15V and are capable of delivering 600 amps - when there is a conductor with very low resistance across the terminal. (Volts / current = resistance) so 12 volts/ 600 ... connect yourself to a car battery you will only get 12v/1,000,000 ohms = 12 microamps. Nothing.

Description : The process of removing the unwanted magnetism is called ______ A) Unmagnetization B) Degaussing C) Diamagnetization D) Depoling

Last Answer : The process of removing the unwanted magnetism is called Degaussing

Description : Draw the labeled block diagram of process control system and explain each block.

Last Answer : Explanation - Process control system consists of process or plant, sensor, error detector, automatic Controller, actuator or control element. 1) Process or plant- process means some manufacturing sequence ... process which changes the process variable. Output of this block is denoted by u .

Description : Explain fabrication using N-well process.

Last Answer : N-Well process: The N-well CMOS circuits are getting more popular because of the lower substrate bias effect on transistor threshold voltage and lower parasitic capacitances associated with source ... overall passivation layer is formed and the openings for accessing bonding pads are defined. 

Description : Explain FSM and concurrent process with example.

Last Answer : Finite State Machine (FSM): Finite state machine is a machine which have a transition from state to state. The system have some number of states and at a time the system can ... Y seconds. In sequential execution, the processor executes single task which causes poor processor utilization.

Description : What is design technology? Explain top down design process.

Last Answer : Design technology: Design technology is the manner in which we convert our concept desired system into an implementation. The three main design technologies are 1. Compilation/Synthesis ... general purpose processors and A Gate-level Netlist for special-purpose processors.

Description : Example of associative social process is A. Assimilation B. Conflict C. Competition D. None of the above

Last Answer : A. Assimilation

Description : Direct Extrusion process

Last Answer : Direct Extrusion process Direct extrusion process is shown in fig. The raw material used is a billet. It consists of a press operated ram and a cylinder or container into which the heated ... for extruding long extrudes. 2) Support of the ram becomes a problem as work length increases.

Description : List types of chips produced in machining process.

Last Answer : The various types of chips produced in machining process are as follows: 1. Continuous chips: According to its name, continuous chips have a continuous segment. . 2. Discontinuous chips or segmental chips: ... chip is same as the continuous chips except a built edge is form at the face of tool.

Description : Describe Twin-tube process with diagram.

Last Answer : Twin Tub Process:  A logical extension of the p-well and n-well approaches is the twin-tub fabrication process.  In this process, a substrate of high resistivity of n-type material ... manufacturing tolerances results.  This is particularly important as far as latch up is concerned.

Description : The process of a computer receiving information from a server via Internet is known as:  (A) Uploading (B) Retrieving (C) Downloading (D) All of the above

Last Answer : The process of a computer receiving information from a server via Internet is known as: Downloading 

Description : The standard for long distance analog signal transmission in process control industry is (A) 4-20 mV (B) 0-20 mA (C) 4-20 mA (D) 0-5 V

Last Answer : The standard for long distance analog signal transmission in process control industry is 4-20 mA

Description : What is something that most people do the wrong way but that you definitely and positively do the right way?

Last Answer : I’m starting to see a crowd: many people holding sticks with bristles and a white swirl. The vision disappears into a dark place. Then a cacophony. That’s it.

Description : Name the effect of electric current observed in electroplating. Explain the same.

Last Answer : Effect of Electric Current Observed in Electroplating: Chemical effect of electric current is observed in electroplating.  Chemical Effect of Electric Current: Whenever a DC current is passed through ... of any desired metal on another material, by means of electricity, is called electroplating.

Description : Explain electroplating process

Last Answer : Electroplating Process: Electroplating may be described as a process of covering a surface or object usually metallic with a thin adherent coating of same or other metal by electrolysis. The form of ... wear. Gold, silver and platinum plating are used in jewellery and electronic industry. 

Description : Explain the process of electroplating of an iron spoon with silver. 

Last Answer : 1. Electroplating of silver on iron - spoon is carried out in a rectangular steel tank. 2. Iron spoon, which is to be electroplated, is cleaned by boiling with caustic soda in order to remove ... gets slowly dissolve in solution by giving Ag+ ions.  The schematic representation is : 

Description : Define electroplating. Give its two purposes 

Last Answer : Definition: - The process of producing metallic coating of more resistant metals (like Ag, Au, Ni, Cr etc.) on an article with the help of electric current is called electroplating.  Purposes of ... by electro deposition of metal in between the broken or at the defective part of the metal. 

Description : Electric supply for electroplating should be through a

Last Answer : Electric supply for electroplating should be through a DC source

Description : In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as: A. Electroplating B. Annealing C. Galvanization D. Vulcanization

Last Answer : ANSWER: C

Description : In order to prevent the corrosion of iron pipes, they are often coated with a layer of zinc. This process is termed as (a) electroplating (b) annealing (c) galvanization (d) vulcanization

Last Answer : Ans:(c)

Description : The process of electroplating involves (a) electrolysis (b) dialysis (c) osmosis (d) decomposition

Last Answer : Ans:(a)

Description : (3) made cathode and a pure nickel red, the anode Explanation: Electroplating is the deposition by electrolysis of a coating of metal upon a conducting surface. The simplest system makes the object to be ... on the spoon is called reduction and, therefore, the spoon is also referred to as a cathode.

Last Answer : Which of the following is not a method of preparing oxygen? (1) Electrolysis of water (2) Fractional distillation of liquid air (3) Decomposition of potassium permanganate (4) Decomposition of manganese dioxide

Description : In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as------? A. Electroplating B. Annealing C. Galvanization (Answer) D. Vulcanization

Last Answer : C. Galvanization (Answer)

Description : Pick out the wrong statement about coating/electroplating of metals. (A) Phosphate coating is used as an excellent base for paints & enamels (B) Phosphate coating is less corrosion resistant than ... coating metal is made the anode (D) Calorising is the process of coating steel with chromium

Last Answer : (D) Calorising is the process of coating steel with chromium

Description : __________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it increased resistance to corrosion & oxidation upto a temperature of 700°C. (A) Veneering (B) Galvanising (C) Electroplating (D) Calorising

Last Answer : (D) Calorising

Description : Describe with labeled diagram the process of electroplating of silver.

Last Answer : 1. Electroplating of silver on iron - spoon is carried out in a rectangular steel tank. 2. Iron spoon, which is to be electroplated, is cleaned by boiling with caustic soda in order ... spoon gets plated with silver. Silver anode gets slowly dissolve in solution by giving Ag+ ions. 

Description : What is Electroplating ?

Last Answer : Electroplating is the process of applying a thin coating of one metal over another with the help of electrolysis. A corrosive metal coating is applied to a corrosive material made of a corrosive cheap ... the nickel rod is electrified using any other material made of anode and laher as a cathode.

Description : What is the purpose or use of electroplating ?

Last Answer : : It is easily corroded by the action of air and water vapor on the material made of ordinary lacquer. As a result, they are eroded. After being coated with nickel or chromium , it does ... it has a liner inside and a chromium coating on top . Electrical coating gives greater stability to metals.

Description : What is meant by electroplating ?

Last Answer : In the process of electrolysis or electrolysis, the coating of one metal on another metal is called electroplating. In this way the durability and beauty of the metal increases and the beauty increases. For example , nickel and chromium are coated on iron.

Last Answer : Electroplating is the process of coating one metal with another in electrolysis.

Last Answer : electricity Analysis Or Electrolysis In the process A Metal On Other A Metal Cover To give Electroplating Says. This In the process Usually A Active Metal On Other A Less Active Metal Cover Given Is. Thus ... Of matter Durability, Beauty Increase Gets . E.g. Iron On Nickel , chromium Cover Given Is.

Description : In an electroplating experiment, mg of silver is deposited when 4 A of current flows for 2 min. The amount of silver (in g) deposited by 6 A of curren

Last Answer : In an electroplating experiment, mg of silver is deposited when 4 A of current flows for 2 min. The amount of silver (in ... )/(2)` C. 2m D. `(m)/(4)`

Description : How are people trying to resolve electroplating?

Last Answer : The health problems associated with chromium plating are:-1: skin rashes 2: stomach ulcers3: respiratory problems 4: weakened immune system5: kidney and liver damage. 6: Cancer / DNA damageothers are acne , ... resolve it are -1. Use of water insoluble chromium compounds2. by use of a mild steel .

Description : What is the method of electroplating?

Last Answer : Need answer

Description : Electroplating can be carried out for 1. Preservation 2. Decoration 3. Protection from corrosion The correct statement(s) is/are: (a) 1 and 2 only (b) 1, 2 and 3 (c) 2 and 3 only (d) 1 and 3 only

Last Answer : Ans:(b)

Description : Black lung disease occurs in people working in – (1) Electroplating industry (2) Organic solvents industry (3) Paint manufacturing industry (4) Coal mines

Last Answer : (4) Coal mines Explanation: Coal worker's pneumoconiosis, colloquially referred to as black lung disease, is a lung disease that results from breathing in dust from coal, graphite, or man-made carbon ... to be removed by the body; that leads to inflammation, fibrosis, and in worse cases, necrosis.

Description : The metals commonly used for electroplating are – (1) Gold, Sodium and Chromium (2) Chromium, Copper and Nickel (3) Nickel, Lead and Chromium (4) Gold, Sodium and Potassium

Last Answer : (2) Chromium, Copper and Nickel Explanation: The process of electroplating takes place as metals in ionic form move from a positive to negative electrode. An electric current passing through the ... ability of metal objects. Plating protects by one of two ways, either sacrificially or mechanically.

Description : The coating of a thin layer of zinc on steel or iron objects is known as – (1) Hot dipping (2) Tinning (3) Galvanising (4) Electroplating

Last Answer : (3) Galvanising Explanation: Galvanization is the process of applying a protective zinc coating to steel or iron, in order to prevent rusting. Although galvanization can be done with electrochemical and ... is hot-dip galvanization, in which steel parts are submerged in a bath of molten zinc.

Description : In the electroplating of gold, the electrolyte used is – (1) Gold chloride (2) Gold nitrate (3) Gold sulphate (4) Potassium aurocyanide

Last Answer : (3) Gold sulphate Explanation: Gold plating is a method of depositing a thin layer of gold onto the surface of another metal, most often copper or silver (to make silver-gilt), ... sulfite based electrolyte. This product is environment and user friendly and moreover the electroplating rate is good.

Description : What is the aim of electroplating?

Last Answer : The aim of electroplating is to give the articles made of one metal a coating of another metal either to improve the appearance or to protect it against rusting and tarnishing.

Description : What is electroplating?

Last Answer : Electroplating is the process of plating one metal onto another by passing current through the electrolyte.

Description : Copper can be converted into gold by ? A. Artificial radioactivity (Answer) B. heating C. Electroplating D. Chemical reaction

Last Answer : A. Artificial radioactivity (Answer)

Description : Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances. (A) Radioactive (B) Organic (C) Inorganic (D) None of these

Last Answer : (C) Inorganic

Description : Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by (A) Chemical coagulation (B) Floatation & skimming (C) Centrifugation (D) Ultra filtration

Last Answer : (A) Chemical coagulation

Description : Electro deposition of metals i.e. electroplating is never done on (A) Metals (B) Alloys (C) Refractories (D) Non-metals

Last Answer : (C) Refractories

Description : Case hardening is not done by (A) Nitriding (B) Hot dipping (C) Electroplating (D) Both ‘b’ & ‘c’

Last Answer : Option D

Description : Define the following : Electrochemistry , Electrolyte , Non-Electrolyte , Electrolytic Cell , Galvanic or Voltaic cell , Electrolysis , Hydrolysis & electroplating.

Last Answer : Ans : (a) Electrochemistry : Electrochemistry is the branch of chemistry which deals with such chemical reactions involving the inter-conversion of electrical energy and chemical energy. Example : Batteries , ... should be a solution of the coating metal, such as its metal nitrate or sulfate.

Description : What is electroplating and what is its objective?

Last Answer : Ans:The process in which one metal is deposited at other electrolytically. It is very useful process and following are objective of electroplating. (a) Deposition of Nobel metals on inferior metals. (b) Protection of different metals from corrosion. (c) Repair of broken machinery.