1
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The following statements concern elements in the periodic table. Which of the following is true ?
A
All the elements in Group 17 are gases.
B
The Group 13 elements are all metals.
C
Elements of Group 16 have lower ionization enthalpy values compared to those of Group 15 in the corresponding periods.
D
For Group 15 elements, the stability of + 5 oxidation state increases down the group.
2
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Extraction of copper by smelting uses silica as an additive to remove :
A
Cu2S
B
FeO
C
FeS
D
Cu2O
3
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Identify the reaction which does not liberate hydrogen :
A
Reaction of zinc with aqueous alkali.
B
Electrolysis of acidified water using Pt electrodes.
C
Allowing a solution of sodium in liquid ammonia to stand.
D
Reaction of lithium hydride with B2H6.
4
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The commercial name for calcium oxide is :
A
Milk of lime
B
Slaked lime
C
Limestone
D
Quick lime
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