1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following is not a correct statement?
A
Multiple bonds are always shorter than corresponding single bonds.
B
The electron-deficient molecules can act as Lewis acids.
C
The canonical structures have no real existence.
D
Every AB5 molecule does in fact have square pyramid structure.
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following would have a permanent dipole moment?
A
SiF4
B
SF4
C
XeF4
D
BF3
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
The surface tension of which of the following liquid is maximum ?
A
C2H5OH
B
CH3OH
C
H2O
D
C6H6
4
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
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