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1
JEE Main 2020 (Online) 7th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The refining method used when the metal and the impurities have low and high melting temperatures, respectively, is :
2
JEE Main 2020 (Online) 7th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The purest from of commercial iron is :
3
JEE Main 2019 (Online) 12th April Evening Slot
MCQ (Single Correct Answer)
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Out of Syllabus
The correct statement is :
4
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
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-1
Out of Syllabus
The idea of froth floatation method came from a person X and this method is related to the process Y of ores. X and Y, respectively, are :
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