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(i) What is green chemistry? (ii) Differentiate - BOD and COD. |
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Answer» Solution :(i) . Green chemistry is a chemical philosophy ENCOURAGING the design of products and processes that reduces or eliminates the use and generation of hazardous substances. • Efforts to control environmental pollution resulted in DEVELOPMENT of SCIENCE for the synthesis of chemicals favourable to environment. • Green chemistry means science of ENVIRONMENTALLY favourable chemical synthesis. 
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