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Flash point - Characteristics of Hydrocarbons
The minimum temperature at which an oil provides enough vapours to form an explosive mixture with air is considered as flash point of the oil.
The flash point in middle Asia is fixed at 44oC, in France it is fixed at 35oC, and in England at 22.8oC. The flash point of oil is usually ascertained by means of "Abel's apparatus".
Chemists have made some hydrocarbons with octane number even less than zero (for example n-nonane has octane number - 45) also hydrocarbon along with octane number bigger than 100 (for example 2, 2, 3 trimethyl-butane. has octane number of 124).
Action of grignard reagents on carbonyl compounds with examples
n-propyl acetate evaporates rapidly when exposed to air,but water does not.Explain
(a) Discuss, with the aid of diagrams, and with suitable examples, the chemistry (including half-cell reactions), construction and principles of the following electrode types: (
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The valence electron in the carbon atom are: (1) 0 (2) 2 (3) 4 (4) 6 Ans: 4
If wavelength of photon is 2.2x10 -11 m, h= 6.6x 10 -34 J-sec, then momentum of photon is: (1) 3x 10 -23 kgms -1 (2) 3.33x 10 22 kgms -1 (3) 1.452x 10-
Curve of potential energy versus angle of internal rotation The curve of potential energy versus angle of internal rotation is essentially identical to the curve for ethane, ex
PHOTO CHEMICAL COMBINATION OF HYDROGEN&IODINE
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