Analytical Chemistry
https://edu.rsc.org/resources/collections/analytical-chemistry-introductions
https://edu.rsc.org/resources/analysis
https://nptel.ac.in/courses/104/105/104105084
https://nptel.ac.in/courses/104/104/104104066/
Inorganic Chemistry
Chemical bonding and structure
Shapes of molecules-VSEPR
https://www.chemtube3d.com/category/a-level/shapes-of-molecules-vsepr/
Chemistry of main group elements
https://ocw.mit.edu/courses/chemistry/5-05-principles-of-inorganic-chemistry-iii-spring-2005/
https://nptel.ac.in/courses/104/101/104101090/
Group theory
https://ocw.mit.edu/courses/chemistry/5-04-principles-of-inorganic-chemistry-ii-fall-2008/
https://nptel.ac.in/courses/104/101/104101094/
https://nptel.ac.in/courses/104/104/104104080/
Organometallic Chemistry
https://www.chemtube3d.com/category/structure-and-bonding/organometallics-metal-ligand-bonding/
https://nptel.ac.in/courses/104/101/104101123/
https://nptel.ac.in/courses/104/101/104101100/
https://nptel.ac.in/courses/104/101/104101091/
Transition metals (Co-ordination compounds and inorganic reaction mechanism)
https://nptel.ac.in/courses/104/105/104105085/
https://nptel.ac.in/courses/104/105/104105033/
Organic Chemistry
Heterocyclic chemistry
https://nptel.ac.in/courses/104/105/104105034/
Organic synthesis
https://edu.rsc.org/resources/synthesis-explorer/3.article
http://www.chem.ox.ac.uk/vrchemistry/iom/default.html
Organic Reaction Mechanism
https://nptel.ac.in/courses/104/101/104101005/
Pericyclic reaction
https://nptel.ac.in/courses/104/106/104106077
https://nptel.ac.in/courses/104/105/104105071
https://nptel.ac.in/courses/104/105/104105038/
Reagents
https://nptel.ac.in/courses/104/103/104103111
https://nptel.ac.in/courses/104/103/104103023/
Spectroscopy
(Proton NMR)-
https://www.chemtube3d.com/category/a-level/proton-nmr-introduction/
Stereochemistry
https://nptel.ac.in/courses/104/105/104105086
https://nptel.ac.in/courses/104/105/104105127/
Physical Chemistry
Chemical kinetics
https://nptel.ac.in/courses/104/101/104101128/
Polymer chemistry
https://www.chemtube3d.com/category/polymers
https://nptel.ac.in/courses/104/105/104105124
https://nptel.ac.in/courses/104/105/104105039/
Quantum chemistry
https://ocw.mit.edu/courses/chemistry/5-61-physical-chemistry-fall-2017
https://nptel.ac.in/courses/104/108/104108057
https://nptel.ac.in/courses/104/101/104101124
https://nptel.ac.in/courses/104/101/104101126
https://nptel.ac.in/courses/104/104/104104082
https://nptel.ac.in/courses/104/106/104106083/
Statistical thermodynamics
https://ocw.mit.edu/courses/chemistry/5-62-physical-chemistry-ii-spring-2008
https://nptel.ac.in/courses/104/103/104103112/
Structure of atom
https://nptel.ac.in/courses/104/106/104106096/
Thermodynamics and chemical equilibrium
https://nptel.ac.in/courses/104/101/104101084
https://nptel.ac.in/courses/104/105/104105088