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The statements that are correct among the given are
- a)a furnace lined with haematite is used to convert cast iron to wrought iron
- b)collectors enhance the wettability of mineral particles during froth floatation
- c)in vapour phase refining, metal should form a volatile compound
- d)copper from its low grade ores is extracted by hydrometallurgy
Correct answer is option 'A,C,D'. Can you explain this answer?
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The statements that are correct among the given area)a furnace lined w...
Collectors enhance the non-wettability of the ore particles and froth stabilises (e.g. cresols and aniline.)
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The statements that are correct among the given area)a furnace lined w...
Furnace lining with haematite:
A furnace lined with haematite is used to convert cast iron to wrought iron. This statement is correct. Haematite, which is an iron ore, is used as a lining material in the furnace during the conversion process. The conversion of cast iron to wrought iron involves heating the cast iron in a furnace lined with haematite. The haematite reacts with the impurities present in the cast iron, such as carbon, silicon, and phosphorus, and forms a slag. The slag is then removed, resulting in the formation of wrought iron.
Collectors in froth flotation:
Collectors enhance the wettability of mineral particles during froth flotation. This statement is correct. Froth flotation is a process used for separating valuable minerals from their ores. In this process, the ore is ground into a fine powder and mixed with water and collectors. Collectors are substances that selectively bind to the surface of the desired mineral particles, making them hydrophobic (water-repellent). This enhances the attachment of the mineral particles to air bubbles, which are introduced into the flotation cell. The mineral particles then rise to the surface of the cell and form a froth, which is skimmed off to obtain the desired mineral concentrate.
Vapour phase refining:
In vapour phase refining, the metal should form a volatile compound. This statement is correct. Vapour phase refining is a method used for the purification of metals. In this process, the impure metal is converted into a volatile compound by reacting it with a suitable reagent. The volatile compound is then decomposed to obtain the purified metal. For this process to be successful, the metal should form a volatile compound at the given temperature and pressure conditions. The volatile compound can be easily separated from the impurities, allowing for the purification of the metal.
Hydrometallurgy for copper extraction:
Copper from its low-grade ores is extracted by hydrometallurgy. This statement is correct. Hydrometallurgy is a method used for extracting metals from their ores using water-based solutions. In the case of copper extraction, low-grade ores are first leached with a dilute sulfuric acid solution to dissolve the copper ions. The copper-rich solution is then treated with a reducing agent to precipitate the copper in the form of a solid. This solid copper can be further processed to obtain pure copper metal. Hydrometallurgy is commonly used for the extraction of copper from low-grade ores as it is a cost-effective and environmentally friendly method.
A furnace lined with haematite is used to convert cast iron to wrought iron. This statement is correct. Haematite, which is an iron ore, is used as a lining material in the furnace during the conversion process. The conversion of cast iron to wrought iron involves heating the cast iron in a furnace lined with haematite. The haematite reacts with the impurities present in the cast iron, such as carbon, silicon, and phosphorus, and forms a slag. The slag is then removed, resulting in the formation of wrought iron.
Collectors in froth flotation:
Collectors enhance the wettability of mineral particles during froth flotation. This statement is correct. Froth flotation is a process used for separating valuable minerals from their ores. In this process, the ore is ground into a fine powder and mixed with water and collectors. Collectors are substances that selectively bind to the surface of the desired mineral particles, making them hydrophobic (water-repellent). This enhances the attachment of the mineral particles to air bubbles, which are introduced into the flotation cell. The mineral particles then rise to the surface of the cell and form a froth, which is skimmed off to obtain the desired mineral concentrate.
Vapour phase refining:
In vapour phase refining, the metal should form a volatile compound. This statement is correct. Vapour phase refining is a method used for the purification of metals. In this process, the impure metal is converted into a volatile compound by reacting it with a suitable reagent. The volatile compound is then decomposed to obtain the purified metal. For this process to be successful, the metal should form a volatile compound at the given temperature and pressure conditions. The volatile compound can be easily separated from the impurities, allowing for the purification of the metal.
Hydrometallurgy for copper extraction:
Copper from its low-grade ores is extracted by hydrometallurgy. This statement is correct. Hydrometallurgy is a method used for extracting metals from their ores using water-based solutions. In the case of copper extraction, low-grade ores are first leached with a dilute sulfuric acid solution to dissolve the copper ions. The copper-rich solution is then treated with a reducing agent to precipitate the copper in the form of a solid. This solid copper can be further processed to obtain pure copper metal. Hydrometallurgy is commonly used for the extraction of copper from low-grade ores as it is a cost-effective and environmentally friendly method.
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The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer?
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The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer?.
The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer?.
Solutions for The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer?, a detailed solution for The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer? has been provided alongside types of The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The statements that are correct among the given area)a furnace lined with haematite is used to convert cast iron to wrought ironb)collectors enhance the wettability of mineral particles during froth floatationc)in vapour phase refining, metal should form a volatile compoundd)copper from its low grade ores is extracted by hydrometallurgyCorrect answer is option 'A,C,D'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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