Like any Alcoholic Beverages, the only alcohol that is contained is ethanol, no matter if it's Scotch whisky or beer.
Scotch
A crystal decanter is usually used for something that has to be aged. An example of alcohol would be malt scotch.
Scotch alcohol is a generic term for alcohol distilled in Scotland. There are so many types that the only capitalisation takes place with brand names.
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Yes. Alcohol has also been shown to reduce the chances of heart disease, stroke and hypertension, as well as a decrease in bad cholesterol, the ability to stave off Alzheimer's disease and prevent the common cold. However, the key here is moderation.
I presume you mean Scotch Whisky. You can find Scotch Whisky anywhere in the world. Supermarkets, Whisky Shops and any other shop that sells alcohol.
Scotch & Soda
Impossible. Scotch has to have at least 40% alcohol by volume (otherwise they aren't allowed to sell it as 'scotch') and the remaining 40 to 60% is pretty much entirely water. In other words, scotch is (deliciously flavored) alcohol. It's like asking if you could have a cup of coffee without any coffee in it.
Nixon was known to favour scotch Whiskey and soda.
They are both distilled spirits. Gin from grain, then the alcohol is flavored often with junniper berries; scotch from grain (corn, barley, wheat, etc) then aged in used whisky barrels for a number of years to gain its flavor.
No. Barley is a cereal but it is used in the production of alcoholic drinks like scotch and beer.
100-200 calories depending on the proof of the scotch. Pure alcohol is 154 calories per ounce.