Uses of Aldehydes and Ketones

State the important uses of acetone.

Which aldehyde is used to preserve biological specimens?

In the reaction, $\mathrm{A}\stackrel{ \left[\mathrm{O}\right] }{\to }{\mathrm{CH}}_3\mathrm{COOH}$, which aldehyde is used as a reactant ($\mathrm{A}$)?

Mention the uses of ketones. 

Mention the uses of aldehydes. 

Write the uses of aldehydes and ketones.

Milk can be preserved by adding a few drops of:

Explain the commercial importance of formaldehyde and acetaldehyde.

Cotyledons are also called-

Formalin is