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Hydrogen
Quiz 2
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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)
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