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Date: 16-9-2019
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Date: 19-9-2019
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Date: 16-9-2019
1562
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Halogenation is an example of electrophillic aromatic substitution. In electrophilic aromatic substitutions, a benzene is attacked by an electrophile which results in substition of hydrogens. However, halogens are not electrophillic enough to break the aromaticity of benzenes, which require a catalyst to activate.
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دراسة تحدد أفضل 4 وجبات صحية.. وأخطرها
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العتبة العباسية تحتفي بذكرى ولادة الإمام الجواد (عليه السلام) في مشاتل الكفيل
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