Compound e has a molecular formula of c7h6o3. what is the unsaturation number (un) or double-bond equivalent (dbe)?

Unsaturation number (un) or double bond equivalent (dbe) can be calculated as:

=C+1-(H/2)

Where C=number of carbon atoms

H=number of hydrogen atoms

So here the compound is C7H6O3

C=7

H=6

Presence of oxygen will not affect the DBE.

So DBE= 7+1-(6/2)

=5

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.