1
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
The coordination number and the oxidation state of the element ‘E’ in the complex [E(en)2(C2O4)]NO2 (where (en) is ethylene diamine) are, respectively,
A
6 and 2
B
4 and 2
C
4 and 3
D
6 and 3
2
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
The organic chloro compound, which shows complete stereochemical inversion during a SN2 reaction, is
A
(C2H5)2CHC
B
(CH3)3CCl
C
(CH3)2CHCl
D
CH3Cl
3
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
Which one of the following is the correct statement?
A
Boric acid is a protonic acid
B
Beryllium exhibits coordination number of six
C
Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase
D
B2H6.2NH3 is known as ‘inorganic benzene’
4
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
Larger number of oxidation states are exhibited by the actinoids than those by the lanthanoids, the main reason being :
A
4f orbitals more diffused than the 5f orbitals
B
lesser energy difference between 5f and 6d than between 4f and 5d orbitals
C
more energy difference between 5f and 6d than between 4f and 5d orbitals
D
more reactive nature of the actinoids than the lanthanoids

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