Fluorine, chlorine, bromine and iodine are the most reactive non-metals. The noble gases were once thought to react with nothing. We follow chlorine and hydrogen chloride, the interhalogen compounds and the acids of chlorine, and then the compounds of xenon and their shapes. It covers the Indian syllabus (NCERT, NEET, JEE Main) and the matching topic of A-Level, IB and AP.
3 lessons, about 1 h 30 min3 simulations10 problems3 practice questionsPython in every lesson
A swimming pool smells of chlorine, and a tube of toothpaste has fluoride in it. We see how the halogens change from fluorine to iodine, why fluorine is the strongest oxidising agent, and what chlorine does when it meets water, alkali and other substances.
Hydrochloric acid is in the stomach and in every laboratory. We make hydrogen chloride and compare the hydrogen halides. Then we see why one halogen can bond to others in the interhalogen compounds, how to find their shapes, and how the oxoacids of chlorine compare.
Helium lifts a balloon and neon lights a sign. The noble gases were called inert for sixty years, until a chemist made a compound of xenon. We learn their trends, the compounds XeF2, XeF4 and XeF6, and how to work out each shape.
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