1.

Choose the wrong order(a)  NH3 < PH3 < A5H3 (Acidic)(b)  Li < Be < B < C ΔiHi (c)  Al2O3 < MgO < Na2O < K2O (Basic)(d)   Li+ < Na+ < K+ < CS+ (Ionic Radius)

Answer»

(b)  Li < Be < B < C ΔiHi 



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