xii new chemistry book unit 2 book back soln t/m

Unit 2 book back soln t/m   -click here 

S.VISHNU SANKAR .M.Sc.MPhil.,B.Ed.

P.G.ASST IN CHEMISTRY 

E.M.G.HSS,PANPOLI , TIRUNELVELI 

CELL :9443101988

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