9 JEE Main 2020 General Principles and Processes of Isolation of Metals previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the General Principles and Processes of Isolation of Metals chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the General Principles and Processes of Isolation of Metals chapter hub.
The element that can be refined by distillation is :
Cast iron is used for the manufacture of :
The purest form of commercial iron is:
An Ellingham diagram provides information about:
Among statements (a) – (d), the correct ones are : (a) Lime stone is decomposed to CaO during the extraction of i…
The refining method used when the metal and the impurities have low and high melting temperatures, respectively, is
Boron and silicon of very high purity can be obtained through :
The major product in the following reaction is:
According to the following diagram, A reduces B O 2 when the temperature is: