Which of the following practices will not come under green chemistry?
(i) If possible, making use of soap made of vegetable oils instead of using synthetic detergents.
(ii) Using H2O2 for bleaching purpose instead of using chlorine-based bleaching agents.
(iii) Using a bicycle for travelling small distances instead of using petrol/diesel-based vehicles.
(iv) Using plastic cans for neatly storing substances.
Option (iv) Using plastic cans for neatly storing substances is the answer.