1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The correct order of increasing bond angles in the following triatomic species is
A
NO$$_2^ + $$ < NO2 < NO$$_2^ - $$
B
NO$$_2^ + $$ < NO$$_2^ - $$ < NO2
C
NO$$_2^ - $$ < NO$$_2^ + $$ < NO2
D
NO$$_2^ - $$ < NO2 < NO$$_2^ + $$
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
In which of the following pairs, the two species are isostructural?
A
SO$${_3^{2 - }}$$ and NO$${_3^{ - }}$$
B
BF3 and NF3
C
BrO$${_3^{ - }}$$ and XeO3
D
SF4 and XeF4
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
The correct order of C $$-$$ O bond length among CO, CO$${_3^{2 - }}$$, CO2 is
A
CO < CO$${_3^{2 - }}$$ < CO2
B
CO$${_3^{2 - }}$$ < CO2 < CO
C
CO < CO2 < CO$${_3^{2 - }}$$
D
CO2 < CO$${_3^{2 - }}$$ < CO
4
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.
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