Hello. I have a query regarding organic chemistry. 1. http://tinyurl.com/y9nvg2p See question number 21. 2. Relevant equations: None 3. The first Carbon atom beneath the top-most CH3 group I can tell is a chiral centre, as it has 4 different groups attached to it (C=O, CH2, CH3, C). Apparently the answer is C, i.e 2 chiral centres. I can't locate the second one. Thanks.