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0. X, Y and Z are the three elements, each one belongs to anyone of the groups lA, lilA and VA. The oxide of X is amphoteric, the oxide of Y is highly acidic, and the oxide of Z is highly basic. Identify the groups to which these elements X, Y, Z belong to (NTSE Andhra Pradesh, Stage-I, 2015-16) X Y Z
VA IA iliA
IA VA iiiA
iiiA IA VA
iiA VA IA
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