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 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following is not isostructural with SiCl4 ?
A
NH4$$-$$
B
SCl4
C
SO42$$-$$
D
PO43$$-$$
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following species has a linear shape?
A
O3
B
NO2$$-$$
C
SO2
D
NO2+
4
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
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