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Explain rules of pericyclic
The pericyclic selection rules say absolutely nothing about the position of equilibrium in every case. These rules refer to rates of reactions, not to equilibrium constants. Other considerations must be used to decide on the position of equilibrium. The point of the problem is for you to use what you have learned about the relative energies of molecules; the molecule of lower energy is favored in each equilibrium.
(b) The left side of the equation is favored at equilibrium because the double bonds have more alkyl branches. (Alkyl substitution stabilizes a double bond.)
(d) The right side of the equation is favored at equilibrium because single product is aromatic and thus particularly stable, and the other product is volatile (ethylene is a gas)
The color of b-carotene The color of b-carotene is because of its chromophore of extensively conjugated double bonds. Catalytic hydrogenation would result in addition of hydrog
o-isomer is more volatile and how separated by steam distillation?
Molecular View of Solution Formation See the Result by zoom button Ionic Solution
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clear scientific definition of exothermic and endothermic reactions
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applications of photochemistry
The maximum energy is present in any electron at: (1) Nucleus (2) Ground state (3) First excited state (4) Infinite distance from the nucleus Ans: Infinite dis
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