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1
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
During the change of O2 to O2- , the incoming electron goes to the orbital :
A
$$\pi 2{p_y}$$
B
$${\sigma ^*}2{p_z}$$
C
$${\pi ^*}2{p_x}$$
D
$$\pi 2{p_x}$$
2
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
HF has highest boiling point among hydrogen halides, because it has :
A
lowest dissociation enthalpy
B
strongest hydrogen bonding
C
lowest ionic character
D
strongest van der Waals' interactions
3
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the following species, the diamagnetic molecule is
A
CO
B
B2
C
O2
D
NO
4
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the following, the molecule expected to be stabilized by anion formation is :
C2, O2, NO, F2
A
C2
B
NO
C
O2
D
F2
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