1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The stability of +1 oxidation state among Al, Ga, In and Tl increases in the sequence
A
Al < Ga < In < Tl
B
Tl < In < Ga < Al
C
In < Tl < Ga < Al
D
Ga < In < Al < Tl
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The straight chain polymer is formed by
A
hydrolysis of CH3SiCl3 followed by condensation polymerisation
B
hydrolysis of (CH3)4Si by addition polymerisation
C
hydrolysis of (CH3)2SiCl2 followed by condensation polymerisation
D
hydrolysis of (CH3)3SiCl followed by condensation polymerisation.
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation states?
A
3d54s1
B
3d54s2
C
3d24s2
D
3d34s2
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Out of TiF62$$-$$, CoF63$$-$$, Cu2Cl2 and NiCl42$$-$$ (Z of Ti = 22, Co = 27, Cu = 29, Ni = 28) the colourless species are
A
Cu2Cl2 and NiCl42$$-$$
B
TiF62$$-$$ and Cu2Cl2
C
CoF63$$-$$ and NiCl42$$-$$
D
TiF62$$-$$ and CoF63$$-$$