Q.1.
PbO + H2 ----------------> Pb + H2O, in this reaction conversion of H2 to His
Q.2.
Addition of hydrogen to vegetable oil to get vanaspati ghee in presence of catalyst
Q.3.
In formation of ammonia , molybdenum acts as a
Q.4.
Hydrogen is collected by the downward displacement of water during electrolysis of water
Q.5.
Hydrogen is replaced by _________________due to its inflammable nature.
Q.6.
CuO+ H2--------------------> Cu + H, here H is a
Q.7.
Reaction between hydrogen and nitrogen gives
Q.8.
Passing electric current through aqueous solution/ molten state to form ions
Q.9.
Hydrogen with active metals forms:
Q.10.
Hydrogen's symbol is:
Q.11.
Atomic no.of Hydrogen is
Q.12.
___________ is the radioactive isotope of Hydrogen
Q.13.
During electrolysis of water , hydrogen is collected at
Q.14.
During electrolysis of water oxygen is collected at
Q.15.
Hydrogen is odorless, colorless and tasteless gas
Q.16.
When hydrogen reacts with nitrogen forms:N + H=
Q.17.
Deuterium has 1 proton 1 electron and 1 neutron
Q.18.
Which reaction shows preparation of Hyderogen from active metals and water:
Q.19.
Water is a
Q.20.
Heavy water is used as