In general, it is possible to determine if large molecules, such as Vitamin D and Vitamin C, are considered polar or nonpolar by examining their structure and deciding whether polar groups or nonpolar groups predominate. Determine which vitamin is considered polar and which is nonpolar and then circle the correct response. HC-CH CH0 CH CH CH CH CH-CH CH C=CH H-O-OH CH k Vitamin D polar molecule or nonpolar molecule Is Vitamin D water soluble or fat-soluble? Is Vitamin C water soluble or fat-soluble? CH. 0-4 HO CHCH -C- H-9 C=C H-O c=0 O-H Vitamin C polar molecule or nonpolar molecule