Q.1
PbO + H2 ----------------> Pb + H2O, in this reaction conversion of H2 to His
  • redox reaction
  • reduction
  • oxidation
Q.2
Addition of hydrogen to vegetable oil to get vanaspati ghee in presence of catalyst
  • hydrogenation
  • catalytic hydrogenation
  • catalysis
Q.3
In formation of ammonia , molybdenum acts as a
  • catalyst
  • promoter
  • both
  • All of above
Q.4
Hydrogen is collected by the downward displacement of water during electrolysis of water
  • sparingly soluble in water
  • non soluble in water
  • none
Q.5
Hydrogen is replaced by _________________due to its inflammable nature.
  • Ne
  • He
  • Xe
Q.6
CuO+ H2--------------------> Cu + H, here H is a
  • oxidising agent
  • reducing agent
  • none
Q.7
Reaction between hydrogen and nitrogen gives
  • ammonia
  • ammonium
  • ash
Q.8
Passing electric current through aqueous solution/ molten state to form ions
  • electrolysis
  • electrolyte
  • non electrolyte
Q.9
Hydrogen with active metals forms:
  • Water H2O
  • Ammonia NH3
  • Hydrates KH, LiH
  • Bases NaOH
Q.10
Hydrogen's symbol is:
  • H
  • Hy
  • Hd
  • Ho
Q.11
Atomic no.of Hydrogen is
  • 1
  • 2
  • 3
  • 4
Q.12
___________ is the radioactive isotope of Hydrogen
  • Deuterium
  • Tritium
Q.13
During electrolysis of water , hydrogen is collected at
  • anode
  • cathode
  • positive electrode
Q.14
During electrolysis of water oxygen is collected at
  • anode
  • cathode
  • none
Q.15
Hydrogen is odorless, colorless and tasteless gas
  • True
  • False
Q.16
When hydrogen reacts with nitrogen forms:N + H=
  • Ammonium HN3
  • Water H2O
  • Ammonia NH3
  • Nitrogen oxide NO
Q.17
Deuterium has 1 proton 1 electron and 1 neutron
  • True
  • False
Q.18
Which reaction shows preparation of Hyderogen from active metals and water:
  • Na + H2O = NaOH
  • Li + OH =LiOH
  • H + O = HO
  • K + H2O = KOH + H2
Q.19
Water is a
  • basic oxide
  • acidic oxide
  • amphoteric oxide
Q.20
Heavy water is used as
  • modulator in nuclear reactions
  • coolant in nuclear reactions
  • both (a) and (b)
0 h : 0 m : 1 s