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Processes of Isolation of Elements · Chemistry · NEET

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MCQ (Single Correct Answer)

NEET 2023 Manipur
Match List - I with List - II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-fa...
NEET 2023 Manipur
Read the following statements and choose the set of correct statements : (A) Chrome steel is used for cutting tools and crushing machines. (B) The fin...
NEET 2023
The reaction that does NOT take place in blast furnace between 900 K to 1500 K temperature range during extraction of iron is :
NEET 2022 Phase 1
Match List - I with List - II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-f...
NEET 2021
The maximum temperature that can be achieved in blast furnace is :
NEET 2021
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
NEET 2020 Phase 1
Identify the correct statement from the following :
NEET 2019
Which one is malachite from the following?
NEET 2018
Considering Ellingham diagram, which of the following metals can be used to reduce alumina?
NEET 2017
Extraction of gold and silver involves leaching with CN$$-$$ ion. Silver is later recovered by
NEET 2016 Phase 1
Match items of Column I with the items of Column II and assign the correct code : .tg {border-collapse:collapse;border-spacing:0;border:none;} .tg t...
AIPMT 2015
In the extraction of copper from its sulphide ore. the metal is finally obtained by the reduction of cuprous oxide with
AIPMT 2015 Cancelled Paper
''Metals are usually not found as nitrates in their ores.'' Out of the following two (I and II) reasons which is/are true for the above observation? ...
NEET 2013 (Karnataka)
The metal oxide which cannot be reduced to metal by carbon is
NEET 2013
Roasting of sulphides gives the gas X as a byproduct. This is a colourless gas with choking smell of burnt sulphur and causes great damage to respira...
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 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 2011 Mains
The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation of the sl...
AIPMT 2011 Prelims
Which of the following elements is present as the impurity to the maximum extent in the pig iron?
AIPMT 2011 Prelims
Which of the following pairs of metals is purified by van-Arkel method?
AIPMT 2007
Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true?
AIPMT 2007
Sulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide ores offer an exception and is conce...
AIPMT 2003
The method of zone refining of metals is based on the principle of
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