Question

Which of the following statement is not correct about Ellingham diagram?

A. $$\Delta G$$  increases with an increase in temperature
B. It consists of plots of $${\Delta _f}{G^ \circ }$$   Vs $$T$$  for formation of oxides
C. A coupling reaction can be well expressed by this diagram
D. It express the kinetics of the reduction process  
Answer :   It express the kinetics of the reduction process
Solution :
Ellingham diagrams are based on thermodynamic concepts. It does not tell anything about the kinetics of the reduction process.

Releted MCQ Question on
Inorganic Chemistry >> Ores and Metallurgy

Releted Question 1

Copper can be extracted from

A. Kupfernical
B. Dolomite
C. Malachite
D. Galena
Releted Question 2

In the alumino-thermite process, aluminium acts as

A. an oxidizing agent
B. a flux
C. a reducing agent
D. a solder
Releted Question 3

The chemical composition of ‘slag’ formed during the smelting process in the extraction of copper is

A. $$C{u_2}O + FeS$$
B. $$FeSi{O_3}$$
C. $$CuFe{S_2}$$
D. $$C{u_2}S + FeO$$
Releted Question 4

Which of the following process is used in the extractive metallurgy of magnesium?

A. fused salt electrolysis
B. self reduction
C. aqueous solution electrolysis
D. thermite reduction

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Ores and Metallurgy


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