1.

Among the following the number of elements showing only one non-zero oxidation stateis O, Cl, F, N, P, Sn, Tl,Na, Ti

Answer»


Solution :Non-zero oxidation states of O are -1, -2, +1 and +2 , that of CL are -1, +1, +3, +5 and +7 , that of F is -1 and +1 , that of P is -3, -2, +1, +3 and +5 , that of Sn is +2 and +4 , that of TI is +1 and +3 , that of Na is +1 and that Ti is +2 and +4.
Thus, only Na can EXIST in one non-zero oxidation state.


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