Which is classified as an amphoteric binary oxide?
A) B2O3
B) CO2
C) Ga2O3
D) Rb2O
Correct Answer:
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Q237: Which is an ionic binary hydride?
A)HF
B)NaH
C)both HF
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Q241: Which element of group 6A has the
Q243: Approximately 90% of the Earth's crust is
Q244: Which one of the following binary oxides
Q245: Which compound has carbon with a negative
Q246: Which group 6A element has the most
Q247: Which one of the following elements forms
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