Give reasons for the following :
(i) A peculiar smell is observed near the preserved specimens in biology laboratory.
(ii) Propanone can be used as a nail polish remover.
(i) The peculiar smell observed near the preserved specimens in biology laboratory is
due to formalin. Formalin is the aqueous solution of formaldehyde and has pungent smell.
(ii) Propanone can be used as a nail polish remover as it is a colourless and volatile liquid and acts as a good organic solvent.