\[A{{l}_{2}}{{O}_{3}}.x{{H}_{2}}O~\] |
Set 1: \[A{{l}_{2}}{{O}_{3}}.x{{H}_{2}}O(s)\,and\,O{{H}^{-}}(aq)\] |
Set 2: \[A{{l}_{2}}{{O}_{3}}.x{{H}_{2}}O(s)\,and\,{{H}_{2}}O(l)\] |
Set 3: \[A{{l}_{2}}{{O}_{3}}.x{{H}_{2}}O(s)\,and\,{{H}^{+}}(aq)\] |
Set 4: \[A{{l}_{2}}{{O}_{3}}.x{{H}_{2}}O(s)\,and\,N{{H}_{3}}(aq)\] |
A) 1 and 2
B) 1 and 3
C) 2 and 4
D) 3 and 4
Correct Answer: B
Solution :
[b] Aluminium oxide is amphoteric oxide because it shows the properties of the both acidic and basic oxides. It reacts with both acids and bases to form salt and water. \[A{{l}_{2}}{{O}_{3}}.x{{H}_{2}}O+2NaOH\xrightarrow{{}}NaAl{{O}_{2}}+{{H}_{2}}O\] \[A{{l}_{2}}{{O}_{3}}.x{{H}_{2}}O+HCl\xrightarrow{{}}AlC{{l}_{3}}+{{H}_{2}}O\]You need to login to perform this action.
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