WorksheetsHydrogen
Total questions: 20
Worksheet time: 3mins
Passing electric current through aqueous solution/ molten state to form ions
electrolysis
electrolyte
non electrolyte
Nitric acid , sodium hydroxide are __________________electrolyte.
weak
strong
none
_________________________is connected to the positive terminal of the battery.
cathode
anode
none
Current leaves the electrolyte through the ________________.
Cathode
anode
none
During electrolysis anion migrate towards
cathode
anode
none
Contains impurity copper which acts as a catalyst.
Granulated zinc
Sodium
Aluminium
Nitric acid is an _________________________agent.
reducing
oxidising
both
______________________is formed when metal reacts with water.
hydroxide
metal hydroxide
hydride
Can't react with dilute acids to liberate hydrogen
Copper
Mercury
copper, mercury and silver
Hydrogen is colorless and
combustible
non combustible
supports combustion
Impure Hydrogen burns with
pop sound
blue flame
pop sound as it contains impurities.
Detonating mixture
hydrogen --oxygen mixture
an explosive
hydrogen --oxygen mixture and is explosive in nature
Reaction between hydrogen and nitrogen gives
ammonia
ammonium
ash
CuO+ H2--------------------> Cu + H2O , here H is a
oxidising agent
reducing agent
none
Hydrogen is replaced by _________________due to its inflammable nature.
Ne
He
Xe
Hydrogen is collected by the downward displacement of water during electrolysis of water
sparingly soluble in water
non soluble in water
none
Addition of hydrogen to vegetable oil to get vanaspati ghee in presence of catalyst
hydrogenation
catalytic hydrogenation
catalysis
PbO + H2 ----------------> Pb + H2O, in this reaction conversion of H2 to H2O is
redox reaction
reduction
oxidation
Commercially H is prepared by
Bosch process
Ostwald process
both
In formation of ammonia , molybdenum acts as a
catalyst
promoter
both
