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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:
What is inductomeric effect with example and what is difference between inductive and inductomeric effect
what is equivalent weight of formaldehyde(HCHO)
Solubility - Physical charterstics of monocarboxylic acids The lower most members of the aliphatic carboxylic acid family (upto C 4 ) are extensively soluble in water.
The gas stream from a sulfur burner is composed of 15-mol% SO 2 , 20-mol% O 2 , and 65-mol% N 2 . This gas stream at 1 bar and 680°C enters a catalytic converter, where the SO 2
Number of orbitats in h sub-shell is: (1) 11 (2) 15 (3) 17 (4) 19 Ans: 11
DIFFRACTION BY SOLIDS Diffraction performs when a wave interacts with a lattice whose dimensions are of the same order of magnitude as that of the wavelength of the waves. The
Q. What is basic need of SI Units? Ans: The Importance of Units Units give numbers a particular meaning. Example: I am 5 feet 10 inches tall. Feet and inches are units. I co
Q. Determine the moisture content in flour? After undertaking this activity, you will be able to: • assess the moisture content in the given sample of flour, • determin
As the electron move away from the nucleus,its potential energy
Conditions which a dye must satisfy and describe them
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