1
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
2
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
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 2005
MCQ (Single Correct Answer)
+4
-1
Lattice energy of an ionic compounds depends upon
A
Charge on the ion only
B
Size of the ion only
C
Packing of ions only
D
Charge on the ion and size of the ion
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