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.
Best Answer: A single malt is from a single batch of whiskey. I've never heard of double malt. A blend is a mixture from several batches of whiskey. Here's a web site. Scroll to the bottom and click page 8. The price is a little higher than you mentioned,but the Glenmorangie 18 year old was rated 95 points (out of 100).