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Explain propene
In propene, the H3C-C bond dipole adds vectorially to the smaller H-C bond dipole; the resultant is smaller than the H3C-C bond dipole itself, as the following diagram shows. In 2-methylpropene, the resultant of the two H3C-C bond dipoles is about equal in magnitude to one H3C-C bond dipole. (This can be shown analytically if we suppose 120° bond angles.) 2-Methylpropene has a somewhat greater dipole moment. (In the following vector analysis, the H-C bond dipoles of the CH2 groups are ignored due to they cancel in the comparison of the two molecules.)
Physical Properties of Oxalic Acid (a) Oxalic Acid is a colourless crystalline solid. It contains two molecules of water as water of crystallisation. (b) The hydrated form h
respiration. is it a exothermic or endothermic
Calculate how the internal energy stored in one O-H bond of H20 Consider the following chemical reaction H20(g)-->2H(g) + O(g) at 298.15 K and 1.00 Bar fH* [H(g)]=218.0 kJ/mole fH*
Effects of substituents on the acidity of phenols: Existence of electron attracting group, (for example -NO 2 , -X, - NR + 3 , -CN, -CHO, -COOH) on the benzene ring increases
describe graphical explanation of cryoscopy?
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Which of the following are isoelectronic species I= CH + 3 , II-NH 2 , III- NH + 4 , IV-NH 3 (1) I, II, III (2) II, III, IV (3) I, II
structure of 2-ethylbutanoic acid
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