17. Chemistry of Chlorine pwpts.pptx - 2012 Chemistry of...

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[email protected]1Chemistryof ChlorineComprehensive tutorialnotesPOWERPOINTVERSION2012WATH ACADEMIC SERVICES[email protected]Julius G. Thungu
ContentsA.HALOGENS-Periodicity of the halogensB. CHLORINEOccurrencePreparation of ChlorineProperties ofChlorineC.HYDROGEN CHLORIDEOccurrencePreparationPropertiesManufacture of Hydrochloric acidD. Cl-salts[email protected]2
[email protected]3-This is the inorganic chemistry of Chlorine-Chlorine compounds are very widely used inhuman and veterinary medicine-In agriculture, most herbicides use chlorinederivatives.-Chlorine is a highlypoisonous/toxicgas.-Its preparation and investigative experimentationshould be in:-the open-a fume chamber-very small amounts.
[email protected]4ElementSymbolAtomicnumberElectricconfigurationChargeof ionValencyState at RoomTemperatureFluorineChlorineBromineIodineAstatineFClBrIAt9173553852:72:8:72:8:18:72:8:18:18:72:8:18:32:18:7F-Cl-Br-I-At-11111Pale yellowGasPale green gasRed liquidGrey SolidRadioactiveA:THE HOLOGENSa) What are halogens?These are elements in group VII(17) of the periodictable.They include…
b) Compare the atomic radius and ionicradius of chloride ion and chlorine. Explain..
[email protected]5/increase to minimize/reduce the repulsion.
c) Compare the atomic radius of chlorineand fluorine Explain.
[email protected]6d) Chlorine is a gas, Bromine is a liquid, Iodineis a solid. Explain the aboveobservations.
[email protected]7Bromine, Chlorine and iodine exists asdiatomicmolecules bonded by strongcovalentbond.Each molecule is joined to the other byweakintermolecularforces/Van-der-waalsforces.Thestrengthof intermolecular/Van-der-waalsforces of attractionincreasewithincreaseinmolecularsize/atomicradius.Iodine has therefore thelargestatomic radiusand thusstrongestintermolecular forces to makeit asolid.
[email protected]8xplaining reactivity in group 7.swformation of halides.swfgroup 7 ion formation.swfgroup 7 changing reactivity.swfClick on each tolistenfor some more explanation
e) (i) What is electronegativity?of
[email protected]10HalogenFClBrIAtElectronegativity(Pauling’s scale)4.03.02.82.52.2(ii)The table below shows the electronegativity ofthe halogens.

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