Chemistry · Grades 11–12
Chirality and geometric isomerism · Revision sheet
Recognize when spatial labels require enough structural information.
Learn the idea
Chiral
A chiral object is not superimposable on its mirror image.
Center
A tetrahedral carbon bonded to four different substituents is a common source of chirality.
Alkenes
Geometric isomerism around C=C requires each alkene carbon to have two different substituents.
Labels
R/S and E/Z require priority rules and adequate spatial information; a name cannot be guessed from formula alone.
Explain without looking
- Why is checking identical substituents necessary before assigning E/Z?
- Which statement is accurate for an achiral object?
Further reading and review references
These are reference links, not copied exercises, institutional endorsement or proof of independent review.
Independent educational review required. Grade bands are approximate; these are not officially aligned curricula.