Polyethyleneglycols are used in the preparation of which type of detergents?
(i) Cationic detergents
(ii) Anionic detergents
(iii) Non-ionic detergents
(iv) Soaps
Due to the presence of the -OH group, it contributes information of non-ionic detergents. Thus, option (iii) Non-ionic detergents is the answer.