V.K.Varshney4, *Nisha Tripathi1, Sunita Kumar1, Rakesh Singh2, Prashant Singh3, 1Department of Chemistry, M.K.P.P.G. College, Dehradun 2Department of Chemistry, D.B.S.P.G. College, Dehradun 3Department of Chemistry, D.A.V.P.G. College, Dehradun 4Chemistry Division, Forest Research Institute (FRI), Dehradun., India