1
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Very pure hydrogen (99.9%) can be made by which of the following processes?
A
Reaction of methane with steam
B
Mixing natural hydrocarbons of high molecular weight
C
Electrolysis of water
D
Reaction of salt like hydrides with water
2
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide ?
A
Tertiary butyl chloride
B
Neopentane
C
Isohexane
D
Neohexane
3
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
2–Hexyne gives trans–2–Hexene on treatment with :
A
Pt/H2
B
Li/NH3
C
Pd/BaSO4
D
LiAlH4
4
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Lithium forms body centred cubic structure. The length of the side of its unit cell is 351 pm. Atomic radius of the lithium will be :
A
75 pm
B
300 pm
C
240 pm
D
152 pm
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