Question

What is the name of this hydrocarbon?

Answer 1

Answer:

2-methylebutane

Explanation:

it is a hydrocarbon and there is a specific Rule for its nomenclature.

that is known as IUPAC naming system. According to it

• The compound that has all single bonds name ends on ane.
• Names according to the number of Carbons,

                * For one carbon compound it is known as methane,

                * For 2 ethane,

                * For 3 propane

                * For 4 Butane and so on.

• select the longest chain of compound
• Start numbering with lowest substituted position at carbon
• branch compound name as Iso and neo as whole

So keeping in mind the compound can be named as

2-methylebutane

• As the longest chain contain four carbon atoms so it will name as butane
• The substitution of methyl group is on C-2

*Note: it can also named as isopantane as it is branched and have five carbons but it could not be 3-isopentane.

Answer 2

Answer:

B. 2-methylebutane

Explanation:

Edge 2020