Related Questions
Hydrogen exists as a diatomic molecule (). This means it exists as:
A single hydrogen atom
Two hydrogen atoms bonded together
Three hydrogen atoms bonded together
A mixture of hydrogen and other elements
Hydrogen reacts with …… even in the dark.
Tritium, a radioactive isotope of hydrogen, decays into helium-3. What fundamental force is responsible for this decay?
Strong nuclear force
Electromagnetic force
Gravitational force
Weak nuclear force
Which of the following is an example of interstitial hydride?
Which can adsorb large volumes of hydrogen gas?
Colloidal solution of palladium
Finely divided nickel
Colloidal ferric hydroxide
Finely divided platinum
Ortho and parahydrogen differ in
Number of electrons
Number of neutrons
Direction of spin of electrons
Direction of spin of nuclei
Which is the poorest reducing agent?
Atomic hydrogen
Nascent hydrogen
Dihydrogen
All have same reducing strength
Which of the following could act as propellent for rockets.
Liq.
Liq.
Liq.
Liq.
The percentage of para hydrogen in ordinary hydrogen increases when:
Temperature is lowered
Temperature is increased
Pressure is increased and temperature is decreased.
None of the above
The conversion of atomic hydrogen into ordinary hydrogen is:
Exothermic change
Endothermic change
Nuclear change
Photochemical change
