1
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
The structure of IF7 is :
A
trigonal bipyramid
B
octahedral
C
pentagonal bipyramid
D
square pyramid
2
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
Among the following the maximum covalent character is shown by the compound :
A
SnCl2
B
AlCl3
C
MgCl2
D
FeCl2
3
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
Which one of the following order represents the correct sequence of the increasing basic nature of the given oxides ?
A
MgO < K2O < Al2O3 < Na2O
B
Al2O3 < MgO < Na2O < K2O
C
Na2O < K2O < MgO < Al2O3
D
K2O < Na2O < Al2O3 < MgO
4
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at :
A
325 nm
B
743 nm
C
518 nm
D
1035 nm

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