Extraction Of Iron And Basic Electrolysis
Explore the fundamentals of iron extraction and basic electrolysis. This quiz covers key concepts including oxidation, reduction, oxidizing and reducing agents, and the properties of iron ore. Ideal for learners aiming to understand essential chemical reactions and processes.
- 1.
What is the definition of reduction?
- A.
The state where there is a loss of electron
- B.
The complete transfer of 10 electrons to a molecular entity
- C.
The complete transfer of one or more electrons to a molecular entity.
- D.
All of the above
Correct Answer
C. The complete transfer of one or more electrons to a molecular entity.Explanation
Reduction is the process in which one or more electrons are transferred to a molecular entity. This can result in a decrease in the oxidation state of the entity and is often accompanied by a gain of negative charge. The correct answer states that reduction involves the complete transfer of one or more electrons to a molecular entity, which accurately describes the process.Rate this question:
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- 2.
What is the definition of oxidation?
- A.
A chemical reaction which is the combining of oxygen with various elements and compounds.
- B.
A process where there is an addition of hydrogen
- C.
The product of adding limestone to iron ore.
Correct Answer
A. A chemical reaction which is the combining of oxygen with various elements and compounds.Explanation
Oxidation is defined as a chemical reaction in which oxygen combines with different elements and compounds. This reaction leads to the loss of electrons or an increase in the oxidation state of the elements involved. It is a common process that occurs in various natural and industrial processes, such as rusting of iron, combustion, and metabolism in living organisms. This definition accurately describes the concept of oxidation, highlighting the involvement of oxygen and the combining of elements and compounds.Rate this question:
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- 3.
What is an oxidizing agent?
- A.
A chemical compound which is moderately toxic by ingestion
- B.
A chemical compound which takes the oxygen completely out of atoms
- C.
A chemical compound that readily transfers oxygen atoms
- D.
All of the above
Correct Answer
C. A chemical compound that readily transfers oxygen atomsExplanation
An oxidizing agent is a chemical compound that readily transfers oxygen atoms. This means that it is capable of accepting electrons from other substances, causing them to lose electrons and become oxidized. This process is often accompanied by the transfer of oxygen atoms. Therefore, an oxidizing agent is a compound that facilitates oxidation reactions by transferring oxygen atoms to other substances.Rate this question:
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- 4.
What is a reducing agent?
- A.
A substance that may be harmful if swallowed
- B.
A substance that chemically reduces other substances, especially by donating an electron or electrons.
- C.
A substance that chemically reduces other substances by adding protons
- D.
All of the above
Correct Answer
B. A substance that chemically reduces other substances, especially by donating an electron or electrons.Explanation
A reducing agent is a substance that chemically reduces other substances by donating an electron or electrons. It is not necessarily harmful if swallowed, and it does not reduce other substances by adding protons. Therefore, the correct answer is that a reducing agent chemically reduces other substances by donating an electron or electrons.Rate this question:
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- 5.
What is Iron Ore?
- A.
Iron ore are mined rocks and minerals from which metallic iron can be extracted. Iron ore is usually found in the form of magnetite, hematite, goethite, limonite and siderite.
- B.
Iron ore are mined rocks and minerals which are usually found at extremely high altitudes
- C.
Iron ore are mined rocks and minerals which contain highly toxic materials like
- D.
All of the Above
Correct Answer
A. Iron ore are mined rocks and minerals from which metallic iron can be extracted. Iron ore is usually found in the form of magnetite, hematite, goethite, limonite and siderite.Explanation
Iron ore is a type of rock or mineral that contains metallic iron, which can be extracted. It is commonly found in the form of magnetite, hematite, goethite, limonite, and siderite. This means that iron ore is not found at extremely high altitudes or contain highly toxic materials. The correct answer provides the accurate definition of iron ore and its typical forms.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Dec 16, 2009Quiz Created by
Bendgordon
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