Which of the following processes cannot remove permanent hardness of water?
Boiling
Calgon’s method
Ion exchange method
Treatment of water with Na2CO3
Which of the following statements is correct?
Protium i.e., ordinary hydrogen is placed with the second group elements of the periodic table.
Hydrogen, being similar to halogens, is placed in the seventh group of the periodic table.
Hydrogen is placed separately in the periodic table.
Deuterium belongs to the third group of the periodic table.
‘Syngas’ is a mixture of hydrogen with
Oxygen
Nitrogen
Carbon dioxide
Carbon monoxide
The electronic configuration of hydrogen is similar to
:
alkaline earth metals
alkali metals
chalcogens
halogens
Heavy water is
T2O
D2O
FeO
CuO
Which of the following statements regarding ‘Hydrogen Economy’ is incorrect?
Dihydrogen is preferred over other fuels.
It is highly effective because of the absence of any limitations.
A pilot project using dihydrogen as a fuel is launched in India.
It refers to the transportation of energy in the form of dihydrogen.
Which of the following oxides can be reduced by hydrogen?
MgO
ZnO
MnO2
Sb2O3
The water-gas shift reaction is
A process of producing hydrogen from carbon monoxide
A reaction of manufacturing sodium hydroxide
A process of producing syngas from coal
Reaction of hydrocarbons with steam
C2D2, a deuterium compound, can be prepared by a
Reaction of calcium carbide with deuterium
Reaction of aluminium carbide with deuterium
Reaction of calcium carbide with deuterium oxide
Reaction of aluminium carbide with deuterium oxide
Which of the following compounds acts as hydrogen storage hydride?
BeH2
C2H6
PdH
LiH