Question

how many primary secondary and tertiary carbon atoms are present in isooctane

Answer 1

not sure about the answer

Answer 2

Answer: Primary = 5 , secondary = 1 and tertiary = 1.

Explanation: Isooctane is the common name for 2,2,4-trimethyl pentane.

Primary carbons depicted by $1^0$ are those which are directly bonded to only one more carbon atom.

Secondary carbons $2^0$ are those which are directly bonded to two more carbon atoms.

Tertiary carbons $3^0$ are those which are directly bonded to three more carbon atoms.

Quaternary carbons $4^0$ are those which are directly bonded to four more carbon atoms.