1
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
Which of the following species exhibits the diamagnetic behaviour?
A
$$O_2^{2−}$$
B
NO
C
$$O_2^+$$
D
O2
2
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed?
A
$$C_2 \to C_2^+$$
B
$$N_2 \to N_2^+$$
C
$$NO \to NO^+$$
D
$$O_2 \to O_2^+$$
3
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
Which of the following hydrogen bonds is the strongest?
A
O−H…….N
B
F−H…….F
C
O−H…….O
D
O−H…….F
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following molecules/ions does not contain unpaired electrons?
A
$$O_2^{2−} $$
B
B2
C
$$N_2^+$$
D
O2
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