Extraction Of Iron And Basic Electrolysis
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Answer the multiple choice questions below
- 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
- 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.
- 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
- 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
- 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
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