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1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Heating an aqueous solution of aluminium chloride to dryness will give :
A
AlCl3
B
Al2Cl6
C
Al2O3
D
Al(OH)Cl2
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The structure of diborane (B2H6) contains :
A
four 2c-2e bonds and two 3c-2e bonds
B
two 2c-2e bonds and four 3c-2e bonds
C
two 2c-2e bonds and two 3c-3e bonds
D
four 2c-2e bonds and four 3c-2e bonds
3
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
4
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
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