1
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which among the following factors is the most important in making fluorine the strongest oxidizing halogen?
A
Electron affinity
B
Bond dissociation energy
C
Hydration enthalpy
D
Ionization enthalpy
2
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Beryllium and aluminium exhibit many properties which are similar. But the two elements differ in :
A
exhibiting maximum covalency in compound
B
exhibiting amphoteric nature in their oxides
C
forming covalent halides
D
forming polymeric hydrides
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Which one the following statement regarding helium is incorrect?
A
It is used to fill gas balloons instead of hydrogen because it is lighter and non–inflammable
B
It is used in gas – cooled nuclear reactors
C
It is used to produce and sustain powerful superconducting reagents
D
It is used as cryogenic agent for carrying out experiments at low temperatures
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Aluminium chloride exists as dimer, Al2Cl6 in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives :
A
Al3+ + 3Cl-
B
Al2O3 + 6HCl
C
[Al(OH)6]3-
D
[Al(H2O)6]3+ + 3Cl-
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