MCQ
Heating an aqueous solution of aluminium chloride to dryness will give
- A$AlC{l_3}$
- B$A{l_2}C{l_6}$
- ✓$A{l_2}{O_3}$
- D$Al(OH)C{l_2}$
✓
Answer
Correct option: C.
$A{l_2}{O_3}$
c
Aqueous solution of $AlCl _3$ is acidic as it gives $HCL$ on hydrolysis.
Aqueous solution of $AlCl _3$ is acidic as it gives $HCL$ on hydrolysis.
$AlCl _3+3 H _2 O \rightarrow Al ( OH )_3+ HCl$
On strongly heating $Al ( OH )_3$ is converted into $Al _2 O _3$.
$Al ( OH )_3 \rightarrow Al _2 O _3+3 H _2 O$
$AlCl _3$ on heating gives $Al _2 O _3$.
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