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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:
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Ask question #Minimum 100 words acceWhen an electron beam strikes a block of copper, x-rays of frequency 1.07 x 10 19 Hz are emitted. What is the wavelength of these x-rays?pted#
Atomic emission spectrometry: In atomic emission spectrometry (AES), a reproducible and representative amount of the sample is introduced into an atomization-excitation source
Q. Explain Collision Theory? Ans. Why do some reactions take place faster than others? What actually happens in a chemical reaction? Consider a gaseous reaction of the typ
diagrams of f orbitals
According to heisenberg uncertainty principle: (1) E=mc 2 (2) Δ x × Δp ≥ h/ 4 Π (3)γ = h/ p (4) Δ x × Δ = h / 6 Π Norma
hoe to calibrate potentio meter in lab ?
crystal field theory
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Chemical properties of monohydric alcohols Characteristic reaction of alcohol are the reaction of the - OH group. The reactions of the hydroxyl group includes either cleavage o
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