The synthesis of diphenylacetylene from mesostilbene dibromide includes next reactions:
• Bromination of stilbene-it is the reaction of electrophilic adition and bromonium ion is formed as intermedier (meso compound is the product).
• Bimolecular elimination-strong base is used in this reaction (takes away the H) and pi bond is formed.
Answer:
B) electron - negative charge.
Explanation:
Answer:
speed up the rate of virtually all of the chemical reactions that take place within cells.
Answer:
Photosynthesis
ExplanatioIn the process of photosynthesis plant take up carbon dioxide and releas oxygen
