1
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
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
2
JEE Main 2019 (Online) 11th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
The correct order of the atomic radii of C, Cs, Al, and S is :
A
S < C < Al < Cs
B
S < C < Cs < Al
C
C < S < Al < Cs
D
C < S < Cs < Al
3
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
The electronegativity of aluminium is similar to :
A
Beryllium
B
Carbon
C
Boron
D
Lithium
4
JEE Main 2019 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
When the first electron gain enthalpy $$\left( {{\Delta _{eg}}H} \right)$$ of oxygen is $$-$$ 141 kJ/mol, its second electron gain enthalpy is :
A
a more negative value than the first
B
almost the same as that of the first
C
negative, but less negative than the first
D
a positive value
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