Question

ПИТАННЯ: 4/12 В яких з приведених нижче прикладах, застосовують електроліз?(декілька відповідей) а)Рафінування б) Електрофорез в)Очищення металів г)Кування металевих виробівд) Обробка дерев'яних поверхонь е)Виготовлення виробів із пластмас​

Answer 1

Ответ:

металургійній, хімічній, електрохімічній

Answer 2

Examples of Electrolysis in the Given Options

Electrolysis is a process that uses an electric current to drive a non-spontaneous chemical reaction. It is commonly used in various applications. Let's examine the given options and identify which ones involve the use of electrolysis:

a) Refining (рафінування): Electrolysis is commonly used in the refining process to purify metals. For example, the electrolysis of copper involves the purification of impure copper by passing an electric current through a copper sulfate solution. This process is known as electrolytic refining [[1]].

b) Electrophoresis (електрофорез): Electrophoresis is a technique used to separate and analyze molecules based on their size and charge. It involves the movement of charged particles in an electric field. While electrophoresis does involve the use of an electric field, it does not necessarily involve electrolysis. The separation of molecules in electrophoresis is primarily based on their charge and size, rather than a chemical reaction driven by electrolysis.

c) Metal purification (очищення металів): Electrolysis is commonly used in the purification of metals. For example, the electrolysis of aluminum involves the extraction of pure aluminum from aluminum oxide using a process called the Hall-Héroult process. This process involves the use of electrolysis to separate aluminum from other impurities [[2]].

d) Metal smelting (кування металевих виробів): Metal smelting refers to the process of extracting metal from its ore by heating and melting it. While electrolysis is not typically used in metal smelting, it is worth noting that some metal extraction processes may involve electrolysis as a step in the overall process.

e) Wood surface treatment (обробка дерев'яних поверхонь): Electrolysis is not commonly used in the treatment of wood surfaces. Wood surface treatment typically involves processes such as sanding, staining, and varnishing, which do not require electrolysis.

f) Plastic product manufacturing (виготовлення виробів із пластмас): Electrolysis is not commonly used in the manufacturing of plastic products. Plastic manufacturing processes typically involve techniques such as injection molding, extrusion, and blow molding, which do not require electrolysis.

Based on the given options, the examples of processes that involve the use of electrolysis are:

- Refining (рафінування) - Metal purification (очищення металів)

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