17 JEE Main 2019 General Principles and Processes of Isolation of Metals previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2019 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 correct statement is:
The reaction that does NOT define calcination is:
The idea of froth flotation method came from a person X and this method is related to the process Y   of ores. X &…
The pair that does not require calcination is
Match the ores (column A) with the metals (column B) :
The correct statement regarding the given Ellingham diagram is:
Assertion: For the extraction of iron, haematite ore is used. Reason: Haematite is a carbonate ore of iron.
The ore that contains both iron and copper is:
The correct statement is:
The electrolytes usually used in the electroplating of gold and silver, respectively, are:
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