1
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
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) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
The oxoacid of sulphur that does not contain bond between sulphur atoms is
A
H2S2O7
B
H2S2O3
C
H2S4O6
D
H2S2O4
3
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Among the following species, the diamagnetic molecule is
A
CO
B
B2
C
O2
D
NO
4
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
The structures of beryllium chloride in the solid state and vapour, phase, respectively,are :
A
chain and chain
B
dimeric and chain
C
chain and dimeric
D
dimeric and dimeric
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