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1
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
$$O_2 \to O_2^+$$
2
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
3
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The decreasing values of bond angles from NH3 (106o) to SbH3 (91o ) down group-15 of the periodic table is due to
A
increasing bp-bp repulsion
B
increasing p-orbital character in sp3
C
decreasing lp-bp repulsion
D
decreasing electronegativity
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
In which of the following molecules/ions are all the bonds not equal?
A
XeF4
B
$$BF_4^−$$
C
SF4
D
SiF4
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