write bond line formula for (CH3)3CH
Answers
Answer:
2-methylpropane
Explanation:
So according to the formula, you have 3 methyl groups, plus one additional carbon and one additional hydrogen in some arrangement.
The only conceivable arrangement that can satisfy those requirements is a central C atom attached to 3 methyl groups and 1 H.
IUPAC alkane naming rules specify that one should first identify the longest continuous carbon chain possible, and thereafter specify the remaining functional groups. As you can see, the longest such chain is 3 carbon atoms long, meaning we're dealing with some variant of propane.
Furthermore, this propane has 1 hydrogen atom swapped out for a methyl group on the central carbon, or carbon #2 no matter which side of the chain you count from.
Hence,
2-methylpropane.
Although it's more commonly called isobutane, despite this not being the "proper" IUPAC designation.