1
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]-
2
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
3
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
$$O_2^{2-}$$
4
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+2
-0.5
The common features among the species CN-, CO and NO+ are :
A
bond order three and isoelectronic
B
bond order three and weak field ligands
C
bond order two and $$\pi$$-acceptors
D
isoelectronic and weak field ligands
JEE Advanced Subjects