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Processes of Isolation of Elements

Chemistry

Previous Years Questions

MCQ (Single Correct Answer)

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Match List - I with List - II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style...
NEET 2022
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
NEET 2021
The maximum temperature that can be achieved in blast furnace is :
NEET 2021
Identify the correct statement from the following :
NEET 2020 Phase 1
Which one is malachite from the following?
NEET 2019
Considering Ellingham diagram, which of the following metals can be used to reduce alumina?
NEET 2018
Extraction of gold and silver involves leaching with CN$$-$$ ion. Silver is later recovered by
NEET 2017
Match items of Column I with the items of Column II and assign the correct code : .tg {border-collapse:collapse;border...
NEET 2016 Phase 1
In the extraction of copper from its sulphide ore. the metal is finally obtained by the reduction of cuprous oxide with
AIPMT 2015
''Metals are usually not found as nitrates in their ores.'' Out of the following two (I and II) reasons which is/are tru...
AIPMT 2015 Cancelled Paper
Roasting of sulphides gives the gas X as a byproduct. This is a colourless gas with choking smell of burnt sulphur and ...
NEET 2013
The metal oxide which cannot be reduced to metal by carbon is
NEET 2013 (Karnataka)
Which one of the following is a mineral of iron?
AIPMT 2012 Prelims
Aluminium is extracted from alumina (Al2O3) by electrolysis of a molten mixture of
AIPMT 2012 Prelims
In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with
AIPMT 2012 Prelims
Which of the following pairs of metals is purified by van-Arkel method?
AIPMT 2011 Prelims
Which of the following elements is present as the impurity to the maximum extent in the pig iron?
AIPMT 2011 Prelims
The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertain...
AIPMT 2011 Mains
Sulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide ores o...
AIPMT 2007
Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true?
AIPMT 2007
The method of zone refining of metals is based on the principle of
AIPMT 2003

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