We have an amazing variety of shapes, styles, and sizes to suit every event, every personality and every winning attitude. To search through all our styles, use our tiara search tool. Or browse through these different sections which are sorted by size. These are our tiaras and crowns that are taller than 4 inches.
alkane-CnH2n+2 alkene-CnH2n alkyl-CnH2n+1 aldehyde-R-CHO where R is any alkyl group ketone-R-CO-R where R is any alkyl group cycloalkane-CnH2n. svetlana Â· 5 years ago.
Following this definition, some chemists considered formaldehyde (CH 2 O) to be the simplest carbohydrate, while others claimed that title for glycolaldehyde. Today the term is generally understood in the biochemistry sense, which excludes compounds with only one or two carbons.