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Subjects
Science CBSE
Class 10
Metals and non-metals
The extraction, classification and properties
16.
Metals with oxygen: choose the correct answer
Exercise condition:
2
m.
1
.
Which of the following is an example of amphoteric oxide?
\(K_2O\)
\(Al_2O_3\)
\(Na_2O\)
\(MgO\)
2
.
\(Al_2O_3+HCl→X+H_2O\). What is X?
\(AlCl_3\)
\(Al(OH)_3\)
\(Al(OH)_2\)
None of these
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