Question
A similarity between optical and geometrical isomerism is
that
A.
each forms equal number of isomers for a given
compound
B.
if in a compound one is present then so is the other
C.
both are included in stereoisomerism
D.
they have no similarity.
Answer :
both are included in stereoisomerism
Solution :
Sterioisomerism involve those isomers which contain same ligands in their co-ordination spheres but differ in the arrangement of these ligands in space. Stereoisomerism is of two type geomerical isomerism and optical isomerism. In geomerical isomerism ligands occupy different positions around the central metal atom or ion.
NOTE : In optical isomerism isomers have same formula but differ in their ability to rotate directions of the plane of polarised light.