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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:
can we reduce r-cn to primary ammines using fe/hcl
What is T in the indicator Eriochrome Black-T used for the determination of hardness of water?
Why phenol does not react with sodium carbonate & sodium bicarbonate? Reason: This is because Phenol is less acidic than H 2 CO 3 and hence the reaction doesnt takes place.
how can the melting point be used to determine the purity of organic compounds
Carbon and its allotropes Diamond - an extremely hard, transparent crystal, with the carbon atoms arranged in a tetrahedral lattice. A poor electrical conductor. An excelle
fiehes test means result if positive result always color change if negative color change or not
Q. Example to show scientific notation? Solve the following problem. 2.45 *10 14 kg + 4.00 * 10 12 kg First articulate both quantities to the same power of ten. Either
Show the Principles of preservation ? Various methods can be used for preservation of foods like freezing, pasteurization, sterilization, canning, dehydration, use of preserva
Solid xenon forms crystals with a face centered unit cell that has an edge of 620 pm. 1. calculate the atomic radius of xenon. 2. calculate the packing efficiency if xenon. So
a) Give a chemical test to distinguish between aniline and N-methyl aniline. Draw the structure of XeF2 molecule. b. Write the outer electronic configuration of Cr atom (Z =
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