Chemistry
Compare the combustibility of –
(a) pure hydrogen
(b) hydrogen-air mixture.
Hydrogen
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Answer
Pure hydrogen burns quietly in air with a pale blue flame forming water:
2H2 + O2 ⟶ 2H2O.
Hydrogen air mixture explodes on burning.
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Related Questions
State the conditions and give balanced equations for the conversion of –
(a) coke to water gas,
(b) water gas to hydrogen
in the Bosch process.
How are the unreacted gases separated out in 'Bosch process' in the manufacture of hydrogen.
State the reactant added to hydrogen to obtain the respective product in each case.
(a) Ammonia
(b) Hydrogen chloride
(c) Water
(d) Hydrogen sulphide
State the use of hydrogen –
(a) As a fuel
(b) In hydrogenation of oil & coal
(c) In extraction of metals