Explain the following with an example:
i. Kolbe's reaction
ii. Reimer-Tiemann reaction
iii. Williamon's ether synthesis
iv. Usymmetrical ether

Explanation

i. NA
ii. NA
iii. NA
iv. If the alkyl or aryl groups attached to the oxygen atom are different, ethers are called unsymmertical ethers, for example, ethyl methyl ether, methyl phenyl ether, 4-chlorophenyl-4-nitrophenyl ether, ect.