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1
JEE Main 2019 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The lathanide ion that would show colour is :
A
Sm3+
B
Gd3+
C
Lu3+
D
La3+
2
JEE Main 2019 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The size of the iso-electronic species Cl–,  Ar and Ca2+ is affected by :
A
electron-electron interaction in the outer orbitals
B
Principal quantum number of valence shell
C
nuclear charge
D
azimuthal quantum number of valence shell
3
JEE Main 2019 (Online) 12th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The element with Z = 120 (not yet discovered) will be an/a -
A
Alkaline earth metal
B
Alkali metal
C
Transition metal
D
Inner transition metal
4
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct option with respect to the Pauling electronegativity values of the element is :
A
Ga < Ge
B
Si < Al
C
Te > Se
D
P > S
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