EASY DOUBTS

1..are oxides of H,Bi,Ga,Tl,Sb,Po AMPHOTERIC ??????

2.WHICH HAS GREATER IONIC CHARACTER --ZnCO₃ OR MgCO₃ ?????

5 Answers

2. Fajan's rule...Size Mg²⁺ < Zn²⁺ => ZnCO₃ more IOnic.

ya..avik is rite...
Mg²⁺ is 72 pm and Zn²⁺ is 75 pm
Ans 1...H₂O is neutral..Ga oxides are amphoteric...dunno abt the rest..

1.arihant says all oxides of these elements are amphoteric

2..Mg²⁺ has noble gas configuration.so it shoud be more ionic naa......

Zn+² is more ionic (fajan rules)

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