Purvisharma

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1. Inductive Effect (I-effect) Electron-withdrawing or donating through sigma bond +I and –I groups 2. Resonance (Mesomeric Effect / M-effect) Delocalization of π-electrons Resonating structures +M and –M groups Resonance stability 3. Electromeric Effect (E-effect) Temporary shift of electrons under the influence of an attacking reagent +E and –E effect 4. Hyperconjugation Delocalization involving σ-electrons (especially C-H adjacent to double bo...

Paleolithic Age Notes): “Detailed notes on the Paleolithic Age of Ancient Indian History. Covers important features of early humans, stone tools, food habits, art & paintings, and major archaeological sites like Bhimbetka. Notes are in simple language with tables and examples for quick revision. Best suited for UPSC, SSC, State PSC, and college