Draw the structures of the following derivatives.

(a) the 2,4-dinitrophenylhydrazone of acetone

(b) the semicarbazone of cyclopentanone

(c) cyclcobuanone oxime

(d) the ethylene acetal of hexan-2-one

(e) acetaldehyde diethyl acetal

(f) the ethyl hemiacetal of acetaldehyde

(g) the (Z) isomer of the ethyl imine of propiophenone

(h) the hemiacetal form of 6-hydroxyhexanal

A compound containing $\text{C}=\text{N}-{\text{NH}}_{\text{2}}$group, formed by the reaction of a ketone or an aldehyde with hydrazine is known as hydrazone.

A compound containing $\text{C}=\text{N}-\text{NH}-{\text{CONH}}_{\text{2}}$group, formed by the reaction of a ketone or an aldehyde with semicarbazide is known as semicarbazone.

A compound containing$\text{C}=\text{N}-\text{OH}$ group, formed by the reaction of a ketone or an aldehyde with hydroxylamine is known as oxime.

Ammonia or primary amine under proper conditions reacts with a ketone or an aldehyde to form an imine.

It is a derivative of an aldehyde or a ketone having two alkoxy groups in place of the carbonyl group.

It is a derivative of an aldehyde or a ketone with just one alkoxy group and one hydroxy group on the carbonyl carbon atom.

A cyclic acetal where ethylene glycol is used as the alcohol.

a.

b.

c.

d.

e.

f.

g.

h.