Question

Which of the following practices involve green chemistry?
(i) Substitute CFCs by environmental friendly HFCs and other compounds.
(ii) Replace halogenated solvent by liquid $C{O}_2$ for drycleaning.
(iii) Use of $H_{2}O$ for bleaching instead of $C{l}_2$
(iv) Making disposable eating utensils and storage jars of plastics.

• A. (i) and (ii)
• B. (ii) and (iv)
• C. (iii) and (iv)
• D. (i), (ii) and (iii)

Answer 1

The correct option is D (i), (ii) and (iii)

Green chemistry is defined as chemistry for an environment which involves less use of hazardous substances. Its purpose is to discover new techniques to make the best chemical product. It is basically using a set of principles and preventing the use of harmful substances.
Plastics and disposals are non-biodegradable materials which can cause harmful effect in the environment.