Write the uses of aldehyde and ketone compounds.

(N/A) $(i)$ Use of formaldehyde:
$(a)$ $40 \%$ solution of formaldehyde is known as formalin,which is used to preserve biological specimens.
$(b)$ It is used in the manufacturing of bakelite (phenol-formaldehyde resin),urea-formaldehyde glues,and other polymeric compounds.
$(ii)$ Use of acetaldehyde: It is primarily used as a starting material for the production of acetic acid,ethyl acetate,vinyl acetate,polymers,and pharmaceuticals.
$(iii)$ Use of benzaldehyde: It is used in the perfumery and dye industries.
$(iv)$ Acetone and ethyl methyl ketone are commonly used as industrial solvents.
$(v)$ Compounds like butyraldehyde,vanillin,acetophenone,and camphor are used for their characteristic odors and flavors.