Table of Contents
- 1 Why Coke is used as reducing agent in the extraction of iron?
- 2 Why coal is a reducing agent?
- 3 Where is coke used as reducing agent?
- 4 Is carbon monoxide a reducing agent?
- 5 Why coke is not used as a fuel?
- 6 Which is the most powerful reducing agent?
- 7 Why is coke used as a reducing agent in the extraction of metals?
- 8 When is co used as a reducing agent?
Why Coke is used as reducing agent in the extraction of iron?
Explanation: Coke is a tough, porous and black substance. It is almost pure form of carbon. It is used as a reducing agent in the extraction of metals.
Why coal is a reducing agent?
For nonferrous processes, in which coal is used as a reductant, it is known that coal contributes to reduction through the gasification reaction of carbon in char [9, 10]. However, plastics are known to decompose by low amount of char and high amount of volatiles.
Why Coke is used in extraction of metals?
Answer:The role of coke in the extraction of iron from its oxides is that it reduces the iron oxide to molten iron metal. Coke also when burnt in the blast furnace, supplies the heat required for carrying out the extraction of iron from its oxide.
Why are they called reducing agents?
In their pre-reaction states, reducers have extra electrons (that is, they are by themselves reduced) and oxidizers lack electrons (that is, they are by themselves oxidized). The oxygen (O2) is being reduced, so it is the oxidizing agent. The glucose (C6H12O6) is being oxidized, so it is the reducing agent.
Where is coke used as reducing agent?
smelting iron ore
Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. Coke from coal is grey, hard, and porous and has a heating value of 24.8 million Btu per ton.
Is carbon monoxide a reducing agent?
Carbon monoxide is a strong reducing agent and reduces metal oxides for metals less reactive than carbon.
What is an example of a reducing agent?
A reducing agent typically is in one of its lower possible oxidation states and is known as the electron donor. Examples of reducing agents include the earth metals, formic acid, oxalic acid, and sulfite compounds. The glucose (C6H12O6) is being oxidized, so it is the reducing agent.
Is fuel a reducing agent?
Since the oxidation number of C increases, the octane is oxidized. The substance that is oxidized is a reducing agent. While this is very much a formalism, petrol is in fact a reducing species inasmuch as it reacts with oxygen to form carbon dioxide.
Why coke is not used as a fuel?
Answer: because fuel has different properties than coke as fuel can help a car move and coke can’t do do that as it does not have the chemicals to complete that task …
Which is the most powerful reducing agent?
Due to the smallest standard reduction potential, lithium is the strongest reduction agent. It decreases another substance when something is oxidized, becoming a reduction agent. Lithium is, therefore, the most powerful reducing agent.
What is the strongest oxidizing agent?
Fluorine (F) is the strongest oxidizing agent of all the elements, and the other Halogens are also powerful oxidizing agents. Fluorine is such a good oxidizing agent that metals, quartz, asbestos, and even water burst into flame in its presence.
What is the best reducing agent?
Lithium is the strongest reducing agent. Strength of a reducing agent is a measure of its ability to lose electrons and get oxidized. Lithium has the strongest ability to lose electron.
Why is coke used as a reducing agent in the extraction of metals?
When we heat Fe2O3 ore with coke (C) at very high temperature (1400°C), carbon removes oxygen from iron oxide (reduction) in the form of CO and CO2 and hot liquid iron is obtained… This is how coke is used as reducing agent in extraction of metals.
When is co used as a reducing agent?
When coke or coal is used to reduce a metal oxide, it gets oxidized to CO. And, when CO itself is the reducing agent, it is oxidized to CO2 .
Which is a reducing agent in the Bf process?
Coke: Coke is the primary fuel and reducing agents in the BF process. Depending on auxiliary reducing agents used, the coke consumption level is around 350–400 kg/t hm in modern blast furnaces. The metallurgical coke in the blast furnace acts as a reducing agent, energy carrier, and support medium for the burden material.
Why is carbon used as a reducing agent in metallurgy?
Nice question! Carbon is a good reducing agent, especially at higher temperatures, because it is a non-metal and it combines with oxygen and forms its gaseous non-metallic oxides.