1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following molecules has trigonal planar geometry?
A
BF3
B
NH3
C
PCl3
D
IF3
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
The correct order in which the O $$-$$ O bond length increases in the following is
A
O2 < H2O2 < O3
B
O3 < H2O2 < O2
C
H2O2 < O2 < O3
D
O2 < O3 < H2O2
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
In BrF3 molecule, the lone pairs occupy equatorial positions to minimize
A
lone pair - bond pair repulsion only
B
bond pair - bond pair repulsion only
C
lone pair - lone pair repulsion and lone pair - bond pair repulsion
D
lone pair - lone pair repulsion only.
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Among the following, the pair in which the two species are not isostructural is
A
SiF4 and SF4
B
IO3$$-$$ and XeO3
C
BH4$$-$$ and NH4+
D
PF6$$-$$ and SF6
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