1
IIT-JEE 2007
MCQ (Single Correct Answer)
+2
-0.5
Among the following the paramagnetic compound is
A
Na2O2
B
O3
C
N2O
D
KO2
2
IIT-JEE 2005 Screening
MCQ (Single Correct Answer)
+2
-0.5
Which species has the maximum number of lone pair of electrons on the central atom?
A
[ClO3]-
B
XeF4
C
SF4
D
[I3]-
3
IIT-JEE 2004 Screening
MCQ (Single Correct Answer)
+2
-0.5
According to molecular orbital theory which of the following statement about the magnetic character and bond order is correct regarding $$O_2^+$$
A
Paramagnetic and Bond order < O2
B
Paramagnetic and Bond order > O2
C
Diamagnetic and Bond order < O2
D
Diamagnetic and Bond order > O2
4
IIT-JEE 2002 Screening
MCQ (Single Correct Answer)
+1
-0.25
Which of the following molecular species has unpaired electrons(s)?
A
N2
B
F2
C
$$O_2^-$$
D
$$O_2^{2-}$$
JEE Advanced Subjects