List of top Chemistry Questions on General Principles and Processes of Isolation of Elements asked in AIIMS

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : \(ZrI_4\) is useful in purification of zirconium (Zr). 

Reason : \(ZrI_4\) sublimise at room temperature.

In the light of the above statements, choose the correct answer from the options given below

Which process is used in smelting during metallurgy of copper?
Zone refining is based on the solubility of impurities in the molten state than in the solid state of the metal. Pure metal oxide is obtained in zone refining.
$\Delta G^{\circ}$ versus $T$ plot in the Ellingham's diagram slopes downward for the reaction
In the metallurgy of aluminium
Which of the following is a carbonate ore?
Thermite is a mixture of iron oxide and
Which of the following is a sulphide ore?
Bauxite, an ore of aluminium is purified by