Question

give the IUPAC name of the following

Answer 1

(1) Propane ( as it has 3 carbons and all single bonds)

(2) Butane ( as it has 4 carbons and all single bonds)

Answer 2

Answer:

(a) Cyclopropane

(b) 2-Methylpropane

(c) 2-Chlorobutane

(d) Butan-2-one or 2-Butanone

Step-by-step explanation:

(a) Cyclopropane

Because there are 3 carbons (hence, propane) and they are forming a       closed chain (hence, cyclo).

(b) 2-Methylpropane

Because there are 3 carbons in primary chain (hence propane) and there is a methyl group attached to second carbon of primary chain.

(c) 2-Chlorobutane

Because there are four carbons (hence, butane) and a chlorine atom attached to the second carbon atom (hence, chloro).

(d) Butan-2-one or 2-Butanone

Because there are 4 carbon atoms (hence, butan or butane) and there is one oxygen atom, i.e a ketone functional group on the second carbon atome (hence, -one).