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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:
Q. Show Uses of Sulphur? Sulphur is used in the manufacture of sulphur dioxide, sulphuric acid, and gunpowder. Match. fertilisers, drugs, bleaching agents, leather and other pr
Q. Explain about Magnetic Separation ? This process is based on the difference in magnetic properties of minerals. If the ore but not the gangue is attracted by a magnetic fiel
maximum 200 problems
Alkane is a organic compound which having single bond between c-c i.e alkane is a saturated compound.
its preparation
Conclusion for chemicals used in medicines
What is inductomeric effect explain .
If wavelength of photon is 2.2x10 -11 m, h= 6.6x 10 -34 J-sec, then momentum of photon is: (1) 3x 10 -23 kgms -1 (2) 3.33x 10 22 kgms -1 (3) 1.452x 10-
lab preparation of ethane
Tritium is the isotope of: (1) Hydrogen (2) Oxygen (3) Carbon (4)Sulpher Ans: Hydrogen
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