1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which one of the following oxides is expected to exhibit paramagnetic behaviour?
A
CO2
B
SiO2
C
SO2
D
ClO2
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
What is the correct relationship between the pH of isomolar solutions of sodium oxide, Na2O (pH1), sodium sulphide, Na2S (pH2), sodium srlenide, Na2Se (pH3) and sodium telluride Na2Te (pH4)?
A
pH1 > pH2 > pH3 > pH4
B
pH1 > pH2 $$ \approx $$ pH3 > pH4
C
pH1 < pH2 < pH3 < pH4
D
pH1 < pH2 < pH3 $$ \approx $$ pH4
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is
A
more active nature of the actinoids
B
more energy difference between 5f and 6d orbitals than that between 4f and 5d orbitals
C
lesser energy difference between 5f and 6d orbitals than that between 4f and 5d orbitals
D
greater metallic character of the lanthanoids than that of the corresponding actinoids.
EXAM MAP