Ellingham Diagram

Q.

\Which of the following reduction reaction cannot be carried out with coke?

1. ${\mathrm{Fe}}_2{\mathrm{O}}_3\to \mathrm{Fe}$

2. $\mathrm{ZnO}\to \mathrm{Zn}$

3. ${\mathrm{Al}}_2{\mathrm{O}}_3\to \mathrm{Al}$

4. ${\mathrm{Cu}}_2\mathrm{O}\to \mathrm{Cu}$

Q.

Describe the use of aluminium as reducing agent for reduction of metal oxides: Give the equations involved.

Q.

Write down an equation in which hydrogen reduces metal oxides to their respective metals.

Q. Question 39
Why should the metal sulphides and carbonates be converted to metal oxides in the process of extraction of metal from them?

Q. name any metallic oxide which is not reduced by hydrogen

Q.

For the following question, the answer is an integer between 0 and 9 (both inclusive).

In the Ellingham diagram for oxides, there are _____ lines for the reaction(s) between C and O.

___

Q. A metal in the powdered form reacts very slowly with boiling water, but it decomposes in steam. Name the metal.

Q. how can we calculate percentage purity in redox reactions??