Question

what is the common name of ch3(ch2)2 - o - (ch2)2ch3?
propyl propyl ether
dipropyl ether
dibutyl ether
butyl butyl ether
butyl propyl ether

Explanation:

The compound CH₃(CH₂)₂ - O - (CH₂)₂CH₃ has two propyl groups attached to the oxygen atom. In naming ethers, when two identical alkyl groups are present, we use the prefix "di -". So the common name is dipropyl ether.

Answer:

B. dipropyl ether