Principles & Is...

Only One Option Correct Type

Direction : This section contains 9 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. 

Ellingham diagram represents a graph of  

ΔG °vsT plot in the Ellingham diagram  slopes down for the reaction.

The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation of the slag.

Which metal has a greater tendency to form metal oxide?

The main reaction occurring in blast furnace during the extraction of iron from haematite is

Consider the following reactions at 10000 °C,

Then choose the correct statement from the following.

According to Ellingham diagrams the oxidation reaction of carbon and carbon monoxide may be used to reduce which one of the following oxides at the lowest temperature?

The minimum voltage required to electrolyse alumina in the Hall-Heroult process is [Given, (Al₂ O₃ ) = - 1520 kJ/mol and (CO₂ ) = 394  k J/mol]

Based on the given information (CaO) = - 604.2 kJ/mol and (Al₂ O₃ ) = - 1582 kJ/mol, which of the following is feasible?

One or More than One Options Correct Type

Direction : This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

Q. 

For the metallurgical process of which of the calcined ore can be reduced by carbon?