Define Optical activity.

Which of the following is not a colligative property? Elevation in Boiling point Depression in freezing point Optical activity Relative lowering of vapour pressure

Optically active 2-iodobutane on treatement with Nal in acetone gives a product which does not show optical activity. Explain.

Out of cis and trans form of [RhCl_2(en)_2]^+ , cis/trans form shows optical activity.

Draw the geometrical isomers of [Pt(NH_3)_2.CI_2] . Which of these is optically active.

Define optical centre of a lens.

Define optical isomerism. Give one example of optical isomers.

Except glycine all other naturally occurring amino acids are optically active.