The CN― adds to the carbonyl carbon to form a cyanohydrin attached to a benzyl group.

Substituents at adjacent carbon atoms to ketone are responsible for stearic hindrance so the attack of cyanide ion at ketonic carbon is almost impossible.

methyl acetate is also known as methyl ethanoate which is an ester. hydrolysis of ester will results in carboxylic acid and alcohol. this is an reversible reaction methyl acetate is also known as methyl ethanoate which is an ester. hydrolysis of ester will results in carboxylic acid and alcohol. this is an reversible reaction

these are two different organic liquids, not one substance. ethanol is the kind of alcohol in wine and beer (there are many kinds of alcohol, this is the one that adult humans can drink in moderation. all alcohols are poisonous in excess, many are poisonous in smaller quantities. Don't drink until you're 21 and only if you buy it in a legal store, and then, only in moderation). acetone is another kind of organic liquid, highly flammable, and used often to dissolve things, such as nail polish remover. both are made from just C, H, and O.