Which of the following chemical equations represents the auto-protolysis of water?
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.
Which of the following compounds acts as hydrogen storage hydride?
BeH2
C2H6
PdH
LiH
Which of the following oxides can be reduced by hydrogen?
MgO
ZnO
MnO2
Sb2O3
Which of the following is used in the study of mechanism of various chemical and metabolic reaction of our body?
Tritium
Protium
Deuterium
Fullerence
Which of the following torch is used in welding cracked metals?
Sodium blow torch
Hydrogen blow torch
Atomic hydrogen torch
Sodium fluescent torch
Heavy water is
T2O
D2O
FeO
CuO
