vikas askiitian expert
Last Activity: 14 Years ago
this means number of chiral carbons present inside a molecule ..
chiral atom => SP3 hybridised carbon bearing four different groups ...
example

here in this molecule central carbon has 4 different groups so this is chiral center or steriogenic center of molecule ...
in same way molecule can have 1 or more than one steriogenic centers ..
tartric acid has 2 steriogenic centers ...