Mar 30, 2021 • 1h 59m
8M watch mins
All important Reactions ,compounds ,properties of p-block elements , borax ,silicates, graphite diamond , oxides of nitrogen ,HNO3, oxyacids of phosphorus , Sulphur and its compounds , halogens and compounds of Xenon.
Ended on Aug 24, 2020
Ended on Aug 25, 2020
Ended on Oct 18, 2020