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The combustion of gaseous hydrocarbons takes place by an interaction of the hydrocarbon with oxygen, forming an intermediate unstable "hydrogenated" compound. Two examples of hydroxylation of gaseous hydrocarbons are given below : According to theory of peroxidation, worked out by Academician Bakh in Russia as early as 1897, the first product of combustion is not the hydrate but the active unstable peroxide, which in course of further reactions acts as a catalyst and activates the molecules of combustible
mixture." 106. (a) Satish K. Gupta, op. ct., p. 741—
"Earth's Atmosphere The gaseous envelope surrounding the earth is called earth's atmosphere. At sea level, by volume, dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.03% carbon dioxide, 0.0018% neon and traces of gases such as helium, kyrpton and xenon. In addition to the above, air contains water vapours, hydrocarbons, hydrogen peroxide, sulphur
APPLETON
LAYER
400 km
KENNELLY HEAVISIDE
LAYER
THERMOSPHERE
MESOSPHERE
OZONE LAYER
80 km
STRATOSPHERE
50 km
TROPOSPHERE 7TZ EARTH'S SURFACE
136
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