1.. ORDER OF THERMAL STABILTY OF H2O ,H2S H2Se H2Te , H2PO2..ACIDIC ORDER OF MnO ,MnO2 , Mn2O3 Mn2O5Mn2O73.. HYBRIDISATION OF FREE RADICAL CH3• AND CF3• ?4 .. Is tautomerism posible in HCN ?

Dear rohit,

The thermal stability and the bond energies decrease from Hp to HjPo gradually. The order is H20 > H2S > H2Se > H2Te > H2Po.

MnO behaves as a basic anhydride, MnO2 is amphoteric, and Mn2O7 is acidic.

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