Science & Technology·Prelims Strategy
Green Chemistry — Prelims Strategy
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Version 1Updated 9 Mar 2026
Prelims Strategy
For Prelims, the strategy for Green Chemistry should focus on factual recall combined with conceptual clarity. Aspirants must:
- Memorize the 12 Principles: — Understand the essence of each principle. Questions often test the identification of a principle or its core idea (e.g., 'Atom Economy' means maximizing incorporation of reactants into products). A good mnemonic (like Vyyuha's 'PEACE DRIVES GREEN CHEMISTRY') can be invaluable here.
- Key Concepts: — Be clear on terms like Atom Economy, E-factor, green solvents (supercritical CO2, ionic liquids), biocatalysis, renewable feedstocks. Know their definitions and significance.
- Applications: — Identify specific examples of green chemistry applications, especially in industries like pharmaceuticals, chemical manufacturing, and environmental remediation. Questions might ask for examples or the benefits of green chemistry in a particular sector.
- Government Initiatives & International Linkages: — Be aware of any Indian government schemes or international agreements that promote green chemistry or sustainable industrial practices. Connect green chemistry to SDGs.
- Distinctions: — Understand the differences between green chemistry and traditional chemistry, and green chemistry vs. environmental chemistry. Prelims often feature comparison-based questions.
- Current Affairs: — Stay updated on recent breakthroughs in green chemistry, new green technologies, or policy announcements related to sustainable chemicals. Focus on the 'what' and 'why' of these developments.
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