VKC ScienceChemistry for written exams Telegram

UPSC Combined Geo-Scientist

Chemist

  • 3 descriptive papers
  • 200 marks each
  • 3 h per paper

Mains Paper III covers analytical and organic chemistry.

Mains Paper III, analytical and organic chemistry

Short notes

One or two pages per unit for the last week before the exam: formulae, named reactions and the standard diagrams.

  • Errors in quantitative analysis · 17.5 Errors in chemical analysis: accuracy, precision, standard deviation, Q-test, t-test, F-testFreeOpen
  • Separation methods · 17.6 Chromatography (HPLC, GLC, TLC, ion exchange) and solvent extractionFreeOpen
  • Spectroscopic methods of analysis · 13.1 UV spectroscopy and Woodward–Fieser rules · 13.8 Spectroscopic instruments: UV–vis, IR, Beer–Lambert, AAS and flame emission · 13.5 Structure from combined spectra: IR, NMR and mass · 13.2 Infrared spectroscopy: group frequencies, carbonyl stretching and hydrogen bonding · 13.3 ¹H and ¹³C NMR: chemical shift, spin–spin coupling and coupling constants · 13.4 Mass spectrometry: molecular ion, metastable peak and McLafferty rearrangementFreeOpen 13.1Open 13.8Open 13.5Open 13.2Open 13.3Open 13.4
  • Thermal methods of analysis · 17.8 Thermal methods: thermogravimetry (TG), DTG and DTA, with Ca and Mg analysisFreeOpen
  • X-ray methods of analysis · 13.9 X-ray methods (XRD, XRF) and ICP-OES / ICP-MSFreeOpen
  • Inductively coupled plasma spectroscopy · 13.9 X-ray methods (XRD, XRF) and ICP-OES / ICP-MSFreeOpen
  • Analysis of geological materials · 17.7 Analysis of ores, alloys, petroleum, coal and cokeFreeOpen
  • Unstable, uncharged intermediates · 2.6 Molecular rearrangements · 2.3 Reactive intermediates: carbocations, carbanions, radicals, carbenes, nitrenes, benzyneFreeOpen 2.6Open 2.3
  • Addition reactions · 9.1 Polymers: polymerisation, Ziegler–Natta and molar mass · 2.4 Addition to C=C and C≡C: Markovnikov, stereochemistry, dienes · 2.10 Stereochemistry and conformational analysis: R/S, E/Z, Fischer and Newman projections, cyclohexaneFreeOpen 9.1Open 2.4Open 2.10
  • Reactions at the carbonyl group · 2.6 Molecular rearrangements · 7.1 Carbonyl additions and condensationsFreeOpen 2.6Open 7.1
  • Oxidation and reduction · 11.1 Reagents for oxidation, reduction and hydroborationFreeOpen
  • Electrocyclic reactions · 8.1 Pericyclic reactions · 12.1 Organic photochemistry: Norrish reactionsFreeOpen 8.1Open 12.1
  • Spectroscopic methods of analysis · 13.5 Structure from combined spectra: IR, NMR and massFreeOpen

Free to read: 2.10 Stereochemistry and conformational analysis: R/S, E/Z, Fischer and Newman projections, cyclohexane, 13.9 X-ray methods (XRD, XRF) and ICP-OES / ICP-MS, 13.8 Spectroscopic instruments: UV–vis, IR, Beer–Lambert, AAS and flame emission, 13.1 UV spectroscopy and Woodward–Fieser rules, 17.8 Thermal methods: thermogravimetry (TG), DTG and DTA, with Ca and Mg analysis, 13.5 Structure from combined spectra: IR, NMR and mass, 11.1 Reagents for oxidation, reduction and hydroboration, 2.3 Reactive intermediates: carbocations, carbanions, radicals, carbenes, nitrenes, benzyne, 9.1 Polymers: polymerisation, Ziegler–Natta and molar mass, 8.1 Pericyclic reactions, 12.1 Organic photochemistry: Norrish reactions, 13.3 ¹H and ¹³C NMR: chemical shift, spin–spin coupling and coupling constants, 2.6 Molecular rearrangements, 13.4 Mass spectrometry: molecular ion, metastable peak and McLafferty rearrangement, 13.2 Infrared spectroscopy: group frequencies, carbonyl stretching and hydrogen bonding, 17.5 Errors in chemical analysis: accuracy, precision, standard deviation, Q-test, t-test, F-test, 17.6 Chromatography (HPLC, GLC, TLC, ion exchange) and solvent extraction, 7.1 Carbonyl additions and condensations, 17.7 Analysis of ores, alloys, petroleum, coal and coke, 2.4 Addition to C=C and C≡C: Markovnikov, stereochemistry, dienes. Each note is one set for Civil Services, IFoS and Geo-Scientist. More topics follow, and each release is announced on Telegram. All VKC notes