Isolation of Elements PYQs - Last 5 Years
JEE Main / Chemistry / Inorganic Chemistry / 76 recent questions
ChemistryInorganic Chemistry2021-2025
Practice 76 JEE Main Chemistry questions from Isolation of Elements. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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Chemistry / Inorganic Chemistry
2021-2025
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76
Last 5 Years
2021-2025
76
Last 10 Years
2016-2025
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MCQ96.1%
INTEGER3.9%
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76 in last 5 years76 in last 10 years
Last 5 Years Isolation of Elements Questions
Showing 26 of 76 filtered questions.
1Isolation Of Elements
Which refining process is generally used in the purification of low melting metals?
MCQ+4 / -12021
2Isolation Of Elements
Match List-I with List-II :
List - I(Name of ore/mineral)
List - II(Chemical formula)
(a)
Calmine
(i)
\(Zns\)
(b)
Malachite
(ii)
\(FeC{O_3}\)
(c)
Siderite
...
List - I(Name of ore/mineral)
List - II(Chemical formula)
(a)
Calmine
(i)
\(Zns\)
(b)
Malachite
(ii)
\(FeC{O_3}\)
(c)
Siderite
...
MCQ+4 / -12021
3Isolation Of Elements
Match List - I with List - II.
List - I (Ore)
List - II (Element Present)
(a)
Kernite
(i)
Tin
(b)
Cassiterite
(ii)
Boron
(c)
Calamine
(iii)
Fluorine
...
List - I (Ore)
List - II (Element Present)
(a)
Kernite
(i)
Tin
(b)
Cassiterite
(ii)
Boron
(c)
Calamine
(iii)
Fluorine
...
MCQ+4 / -12021
4Isolation Of Elements
Calgon is used for water treatment. Which of the following statement is NOT true about Calgon?
MCQ+4 / -12021
5Isolation Of Elements
Match List - I with List - II.
List - I
List - II
(a)
Sodium Carbonate
(i)
Deacon
(b)
Titanium
(ii)
Castner-Kellner
(c)
Chlorine
(iii)
van-Arkel
...
List - I
List - II
(a)
Sodium Carbonate
(i)
Deacon
(b)
Titanium
(ii)
Castner-Kellner
(c)
Chlorine
(iii)
van-Arkel
...
MCQ+4 / -12021
6Isolation Of Elements
Match List - I with List - II.
List - I
List - II
(a)
Siderite
(i)
Cu
(b)
Calamine
(ii)
Ca
(c)
Malachite
(iii)
Fe
(d)
Cryolite
(iv)...
List - I
List - II
(a)
Siderite
(i)
Cu
(b)
Calamine
(ii)
Ca
(c)
Malachite
(iii)
Fe
(d)
Cryolite
(iv)...
MCQ+4 / -12021
7Isolation Of Elements
Given below are two statements :Statement I : The choice of reducing agents for metals extraction can be made by using Ellingham diagram, a plot of \(\Delta\)G vs temperature.Statement II : The value of \(\Delta\)S increases from left to ri...
MCQ+4 / -12021
8Isolation Of Elements
Given below are two statements :Statement I : Sphalerite is a sulphide or of zinc and copper glance is a sulphide ore of copper.Statement II : It is possible to separate two sulphide ores by adjusting proportion of oil to water or by using ...
MCQ+4 / -12021
9Isolation Of Elements
In the leaching of alumina from bauxite, the ore expected to leach out in the process by reacting with NaOH is :
MCQ+4 / -12021
10Isolation Of Elements
Match List I with List II : (Both having metallurgical terms)
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MCQ+4 / -12021
11Isolation Of Elements
Ellingham diagram is a graphical representation of :
MCQ+4 / -12021
12Isolation Of Elements
The method used for the purification of Indium is :
MCQ+4 / -12021
13Isolation Of Elements
The major components of German Silver are :
MCQ+4 / -12021
14Isolation Of Elements
The major components in "Gun Metal” are :
MCQ+4 / -12021
15Isolation Of Elements
Which of the following ore is concentrated using group 1 cyanide salt ?
MCQ+4 / -12021
16Isolation Of Elements
Math List - I with List - II.
List I (Metal)
List II (Ores)
(a)
Aluminium
(i)
Siderite
(b)
Iron
(ii)
Calamine
(c)
Copper
(iii)
Kaolinite
(d)...
List I (Metal)
List II (Ores)
(a)
Aluminium
(i)
Siderite
(b)
Iron
(ii)
Calamine
(c)
Copper
(iii)
Kaolinite
(d)...
MCQ+4 / -12021
17Isolation Of Elements
Sulphide ion is soft base and its ores are common for metals.(a) Pb (b) Al (c) Ag (d) Mg
MCQ+4 / -12021
18Isolation Of Elements
The metal that can be purified economically by fractional distillation method is :
MCQ+4 / -12021
19Isolation Of Elements
Consider two chemical reactions (A) and (B) that take place during metallurgical process:(A) \(ZnC{O_{3(s)}}\buildrel \Delta \over
\longrightarrow Zn{O_{(s)}} + C{O_{2(g)}}\)(B) $$2Zn{S_{(s)}} + 3{O_{2(g)}}\buildrel \Delta \over
\longri...
\longri...
MCQ+4 / -12021
20Isolation Of Elements
Calamine and Malachite, respectively, are the ores of :
MCQ+4 / -12021
21Isolation Of Elements
The chemical that is added to reduce the melting point of the reaction mixture during the extraction of aluminium is :
MCQ+4 / -12021
22Isolation Of Elements
Match List - I with List - II :
List - I
List - II
(a)
Mercury
(i)
Vapour phase refining
(b)
Copper
(ii)
Distillation refining
(c)
Silicon
(iii)
Elect...
List - I
List - II
(a)
Mercury
(i)
Vapour phase refining
(b)
Copper
(ii)
Distillation refining
(c)
Silicon
(iii)
Elect...
MCQ+4 / -12021
23Isolation Of Elements
The point of intersection and sudden increase in the slope, in the diagram given below, respectively, indicates :
MCQ+4 / -12021
24Isolation Of Elements
Match List - I with List - II :
List - I
List - II
(a)
Haematite
(i)
\(A{l_2}{O_3}\,.\,x{H_2}O\)
(b)
Bauxite
(ii)
\(F{e_2}{O_3}\)
(c)
Magnetite
(iii)
...
List - I
List - II
(a)
Haematite
(i)
\(A{l_2}{O_3}\,.\,x{H_2}O\)
(b)
Bauxite
(ii)
\(F{e_2}{O_3}\)
(c)
Magnetite
(iii)
...
MCQ+4 / -12021
25Isolation Of Elements
The process that involves the removal of sulphur from the ores is :
MCQ+4 / -12021
26Isolation Of Elements
Which of the following reduction reaction CANNOT be carried out with coke?
MCQ+4 / -12021