var TREE_ITEMS = 
[
	['Learning Resources for CBSE Grade 12',null,		
			['The solid state ', null,
				['Solid state ', null],
				['Molecular solids', null],
				['Ionic solids', null],
				['Metallic solids', null],
				['Network solids', null],
				['Crystal lattices and unit cells', null],
				['Number of atoms', null],
				['Close packed structure', null],
				['Formula of a compound and number of voids filled', null],
				['Locating tetrahedral and octahedral voids', null],
				['Packing efficiency', null],
				['Calculations Involving unit cell dimensions', null],
				['Point defects in solids', null],
				['Impurity defects in solids', null],
				['Non-stoichiometric defect', null],
				['Electrical properties', null],
				['Magnetic property of solid', null],
			],
			['General Priniciples and Processes of Isolations of Elements', null,
				['Occurance of metals', null],
				['Methods of concentration of ores', null],
				['Concentration of Ores by Hydraulic washing method', null],
				['Concentration of Ores by magnetic separation method', null],
				['Concentration of Ores by froth floatation method', null],
				['Concentration of ores by leaching method', null],
				['Extraction of crude metal from concentrated ore', null],
				['Thermodynamics principles of metallurgy', null],
				['Applications of thermodynamics in metallurgy', null],
				['Electrochemical principles of metallurgy', null],
				['Oxidation reaction in metallurgy', null],
				['Refininge', null],
				['Uses of aluminium, copper, zinc and iron', null],
			],
			['Haloalkanes and Haloarenes', null,
				['Classification of haloalkanes and haloarenes', null],
				['Nomeclature of haloalkanes and haloarenes', null],
				['Nature of C-X bond in haloalkanes', null],
				['Preparation of haloalkanes from Alcohols', null],
				['Preparation of haloalkanes from hydrocarbons', null],
				['Preparation of haloalkanes by halogen exchange', null],
				['Physical properties of haloalkanes and haloarenes', null],
				['Nucleophilic substitution reaction of haloalkanes', null],
				['SN2 Mechanism', null],
				['SN1 Mechanism', null],
				['Stereochemical principles and notations', null],
				['SN2 and SN1 mechanism in optically active alkyl halides', null],
				['Elimination reactions', null],
				['Reactions of alkyl and aryl halides with metals', null],
				['Nucleophilic substitution reaction of haloarenes', null],
				['Electrophilic substitution reaction of haloarenes', null],
				['Reaction of haloarenes with metals', null],
				['Polyhalogen compounds', null],
			],
    		['Alcohols phenols and ethers', null,
				['Introduction to alcohol phenol ether', null],
				['Classification of alcohol', null],
				['Classification and nomenclature of ether', null],
				['Nomenclature of alcohol', null],
				['Nomenclature of phenol', null],
				['Structure of functional group', null],
				['Preparation of alcohol', null],
				['Preparation of phenol', null],
				['Physical properties of alcohol and phenol', null],
				['Acidity of alcohols and phenols', null],
				['Esterification', null],
				['Reactions involving the cleavage of C-O bond in alcohols', null],
				['Reactions of phenol', null],
				['Some commercially important alcohols', null],
				['Preparation of ethers', null],
				['Physical properties of ethers', null],
				['Chemical reactions of ethers', null]
				['Electrophilic substitution in alkylaryl ethers', null]

			],
	]
];