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1、CHEMISTRYHIGHERSECONDARY-SECONDYEARVOLUME-IIUntouchabilityisasinUntouchabilityisacrimeUntouchabilityisinhumanTAMILNADUTEXTBOOKCORPORATIONCollegeRoad,Chennai-600006©GovernmentofTamilnaduFirstEdition-2005SecondEdition-2006RevisedEdition-2007CHAIRPERSON&AUTHORDr.V.BALA
2、SUBRAMANIANProfessorofChemistry(Retd.)PresidencyCollege,(Autonomous),Chennai-600005.REVIEWERSDr.M.KRISHNAMURTHIProfessorofChemistryPresidencyCollege(Autonomous)Chennai-600005.Dr.R.ELANGOVANDr.J.SANTHANALAKSHMIJointDirector,SarvaShikshaAbhiyanProfessorofPhysicalChemi
3、stryCollegeRoad,Chennai-600006.UniversityofMadrasDr.M.KANDASWAMYChennai-600025.ProfessorandHeadDr.CHARLESCHRISTOPHERKANAGAMDepartmentofInorganicChemistryProfessorofChemistryUniversityofMadrasPresidencyCollege(Autonomous)Chennai-600025.Chennai-600005.AUTHORSMr.S.MUTH
4、UKUMARAN,Mrs.N.KALAVATHY,LecturerinChemistryP.G.TeacherinChemistry,AcademyofMaritimeEducation&Training,J.G.G.HigherSecondarySchoolBITS(Ranchi)Ext.Centre,Virugambakkam,Chennai-600092.Kanathur-603112.Mrs.R.C.SARASWATHY,Mr.V.JAISANKAR,P.G.TeacherinChemistry,LecturerinC
5、hemistryGovt.GirlsHigherSecondarySchoolL.N.GovernmentArtsCollege,AshokNagar,Chennai-600083.Ponneri-601204.Dr.V.NARAYANAN,LecturerinInorganicChemistryMrs.S.MERLINSTEPHEN,UniversityofMadras,Chennai-600025.P.G.TeacherinChemistryDr.K.SATHYANARAYANAN,CSIBainMat.Hr.Sec.Sc
6、hoolP.G.TeacherinChemistry,Kilpauk,Chennai-600010.StanesAngloIndianHr.Sec.School,Price:Rs.Coimbatore-18.ThisbookhasbeenpreparedbytheDirectorateofSchoolEducationonbehalfoftheGovernmentofTamilnadu.Thisbookhasbeenprintedon60G.S.MpaperPrintedbyOffsetat:(ii)PREFACEChemis
7、try,abranchofscienceconcernedwiththeproperties,structuresandcompositionofsubstancesandtheirreactionswithoneanother.InorganicChemistrystudiesthepreparation,propertiesandreactionsofallchemicalelementsandtheircompounds,exceptthoseofcarbon.OrganicChemistrystudiesthereac
8、tionsofcarboncompounds,whichare100timesmorenumerousthannonorganicones.Italsostudiesanimmensevarietyofmolecules,includingthoseofindustrialc
