Question

CH3-CH2-C(CH2-CH3)(CH2-CH3)-CH(CH3)-CH(CH3)-CH3

Answer 1

4,5диметил 3,3 диэтилгексан

Answer 2

The molecule you have provided is a hydrocarbon with eight carbon atoms and 18 hydrogen atoms. It can be named using the IUPAC nomenclature as follows:

2,3,4-trimethylheptane

Explanation:

• The longest continuous carbon chain in the molecule is seven carbons long, so the parent name is heptane.
• The two methyl groups on carbon atoms 2 and 4 are indicated by the prefixes di- and tri-, respectively.
• The two branches on carbon atom 3 are both ethyl groups, which are indicated by the prefix 2-ethyl.
• Therefore, the complete name is 2,3,4-trimethyl-2-ethylheptane. However, it is more commonly written as 2,3,4-trimethylheptane since the position of the ethyl groups is implied by their attachment to the third carbon atom.