If the double bond is broken heterolytically, formal charge pairs result, as shown in the other two structures. The preferred charge distribution will have the positive charge on the less electronegative atom (carbon) and the negative charge on the more electronegative atom (oxygen).
Single malt Scotch. Single malt Scotch is single malt whisky made in Scotland. To be a single malt scotch the whisky must have been distilled at a single distillery using a pot still distillation process and made from a mash of malted grain. In Scotland, the only grain allowed to be used in a single malt whisky is barley.
The most famous type of whisky is Scotch, of which there are two types â malts and blended. Both must be distilled and aged in Scotland for a minimum of three years in oak casks, a stringent quality standard that only Irish whiskey matches. Malt whisky gets its name from the malted barley that has been soaked, allowed to germinate slightly, and then dried in a kiln.