- 1(current)
Q. No.Given below are two statements:
| Assertion (A): | Magnesium metal is not used for the reduction of alumina in the metallurgy of aluminum |
| Reason (R): | Magnesium can reduce alumina. But the process will be uneconomical. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Subtopic: Ellingham Diagram |
64%
Level 2: 60%+
Hints
Given below are two statements:
| I: | The Ellingham diagram provides an idea about the feasibility of a reaction. |
| II: | The Ellingham diagram explains the rate of the reduction reactions. |
In light of the above statements, choose the most appropriate answer from the options given below:
| 1. | I is correct and II is incorrect. |
| 2. | I is incorrect and II is correct. |
| 3. | Both I and II are correct. |
| 4. | Both I and II are incorrect. |
Subtopic: Ellingham Diagram |
56%
Level 3: 35%-60%
NEET - 2022
Hints
Consider the Ellingham diagram given below.
The Y-axis, and X-axis in the graph are respectively:
1. Gibbs energy(\(\Delta G_{r}^{o} \)), and Pressure
2. Gibbs energy (\(\Delta G_{r}^{o} \)), and temperature
3. Enthalpy(\(\Delta H_{r}^{o} \)), and temperature
4. Temperature, and Gibbs energy (\(\Delta H_{r}^{o} \))
Subtopic: Ellingham Diagram |
86%
Level 1: 80%+
Hints
Links
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Consider the following graph.
At 1400 oC, the \(\Delta G_{r}^{o}\) the value for the reaction
2FeO + 2C → 2Fe + CO is
1. -116 kJ mol-1
2. -106 kJ mol-1
3. 100 kJ mol-1
4. -100 kJ mol-1
Subtopic: Ellingham Diagram |
62%
Level 2: 60%+
Hints
Links
- 1(current)
Q. No.
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