Phenols are a class of chemical compounds consisting of a hydroxyl functional group (-OH) attached to an aromatic hydrocarbon group. The simplest of the class is phenol (C6H5OH). Although similar to alcohols, phenols have unique properties including relatively high acidities due to the aromatic ring tightly coupling with the oxygen and a relatively loose bond between the oxygen and hydrogen.
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... Aryan hordes to arrive
in the Indus Valley region circa 1500 BCE. There seems to be no clear
evidence that these hordes destroyed the existing Indus Valley culture.
(See ...