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1
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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From the following statements regarding H2O2, choose the incorrect statement :
A
It decomposes on exposure to light
B
It has to be stored in plastic or wax lined glass bottles in dark
C
It has to be kept away from dust
D
It can act only as an oxidizing agent
2
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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
3
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In context with the industrial preparation of hydrogen from water gas (CO + H2), which of the following is the correct statement?
A
CO and H2 are fractionally separated using differences in their densities
B
CO is removed by absorption in aqueous Cu2Cl2 solution
C
H2 is removed through occlusion with Pd
D
CO is oxidised to CO2 with steam in the presence of a catalyst followed by absorption of CO2 in alkali
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which of the following statements in relation to the hydrogen atom is correct?
A
3s orbital is lower in energy than 3p orbital
B
3p orbital is lower in energy than 3d orbital
C
3s and 3p orbitals are of lower energy than 3d orbital
D
3s, 3p and 3d orbitals all have the same energy
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