The major product of the reaction between barium peroxide and sulphuric acid is
Oxygen
Hydrogen
Barium oxide
Hydrogen peroxide
At ordinary temperature, hydrogen is not more reactive because it exists in
Liquid state
Gaseous state
Molecular state
Solid state
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 compounds acts as a bleaching agent?
MgCO3
NaOH
H2O2
D2O
Which of the following pair of substances on reaction, can not evolve hydrogen gas?
Iron and H2SO4
Iron and steam
Copper and HCl
Sodium and ethyl alcohol
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.