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.
Yes, when it refers to the people of Scotland.
No, because it is not a proper nou n.
No, you do not capitalize the word drama.
do you capitalize the word protestant
do you capitalize roaring twenties
Yes, when it refers to the people of Scotland.
Like any alcoholic beverages, the only alcohol that is contained is ethanol, no matter if it's Scotch whisky or beer.
It depends on the context. If you are using "alcohol" as a general term for the substance, it is not capitalized. However, if you are referring to a specific type of alcohol (e.g., Ethanol), then it should be capitalized.
none
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.
Scotch
You should always capitalize geographic terms, exceptions however are when that term describes a food or drink. For instance, french fries or scotch whiskey you wouldn't capitalize.
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.
A crystal decanter is usually used for something that has to be aged. An example of alcohol would be malt scotch.