1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The value of the ‘spin only’ magnetic moment for one of the following configurations is 2.84 BM. The correct one is :
A
d4 (in strong ligand field)
B
d4 (in weak ligand field)
C
d3 (in weak as well as in strong fields)
D
d5 (in strong ligand field)
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour?
(At. No. Cr = 24, Mn = 25, Fe = 26, Co = 27)
A
[Cr(CN)6]-3
B
[Mn(CN)6]-3
C
[Fe(CN)6]-3
D
[Co(CN)6]-3
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Tertiary alkyl halides are practically inert to substitution by SN2 mechanism because of
A
insolubility
B
instability
C
inductive effect
D
steric hindrance
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Elimination of bromine from 2-bromobutane results in the formation of-
A
equimolar mixture of 1 and 2-butene
B
predominantly 2-butene
C
predominantly 1-butene
D
predominantly 2-butyne
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