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This cycloaddition reaction involves sixteen electrons; hence, it must be suprafacial on one component and antarafacial on the other. Thus, it must be a [14s + 2a] or a [14a + 2s] cycloaddition. The heptafulvene molecule is large enough that its p-electron system can twist without introducing too much strain or without losing too much p-electron overlap; hence, the cycloaddition is a [14a + 2s] process. In either case, the product has the following stereochemistry:
The uncertainty in the position of a moving bullet of mass 10 gm is 10 -5 m . Calculate the uncertainty in its velocity: (1) 5.2 x 10 -28 / sec (
bohr model for hydrogen atom?
giving correct formulas give the reactantsand products in the formation of poly2 butane
FIND THE CENTRIPETAL ACCELERATION OF THE ELECTRON
Electron transfer is the easiest type of redox process, an example being A majority of reactions of that type are very fast, but oxidation by some complexes (especially of
what types of electrodes use in physical chemistry
Q. Determine the equilibrium constant? At 298 K, the molar conductivities at infinite dilution of NH 4 Cl, NaOH and NaCl are 129.8,217.4 and 108.9 ohm -1 cm 2 mol -1 respect
#question.why basic radicals are arranged in different groups.
What will happen if you mix nitrogen and hydrogen gas at room temperature? Explain your reasoning. Calculate the mole fraction of NH 3 that would form theoretically at 298.15
Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
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