Which of the following is an amphoteric oxide?
A) Al2O3
B) Li2O
C) PO3
D) Sc2O3
E) SrO
Correct Answer:
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Q42: Which species is diamagnetic?
A)atomic sodium
B)atomic fluorine
C)iron(III)ion
D)calcium(II)ion
E)cobalt(II)ion
Q51: List in order of increasing atomic size:
Q59: The boiling point for gallium is 2403°C.
Q60: The first ionization potentials for calcium and
Q61: Which of the listed elements is the
Q61: List in order of increasing ionization energy:
Q62: Which would you expect to have the
Q62: List in order of increasing ionization potential:
Q63: Which of the following has the smallest
Q64: Arrange the following in order of increasing
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