I cannot speak for non-judeo-christian beliefs, but No - it is not prohibited in the 10 commandments of the Bible and Jesus made and drank wine - therefore simply imbibing cannot be considered a sin. Within Christianity, certain fundamentalist sects have adopted individual policies against alcohol, but it is not prohibited from the sacred text.
Festivities included dancing and singing and music was provided by wooden drums, reed pipes and wooden bongs. The arawaks will prepare themselves for the ceremony by painting their bodies especially for the important ceremonies. Certain naroctic substances were used to bring about a state of bliss, this inhaling tobacco as well as imbibing in alcoholic beverages.
I'll answer half of the question. Ethanol is the alcohol that is in alcoholic beverages -- liquor, beer, wine, etc. There are too many variables to answer the second part of the question. The amount of ethanol necessary to intoxicate depends on the concentration of the ethanol, the weight of the person, whether they are male or female, what they have eaten before imbibing, their tolerance to alcohol, etc.