MCQ
Hydrogen gas will not reduce
- AHeated cupric oxide
- BHeated ferric oxide
- CHeated stannic oxide
- ✓Heated aluminium oxide
✓
Answer
Correct option: D.
Heated aluminium oxide
d
Aluminium oxide cannot be reduced by hydrogen even under very hot conditions because $Al$ is more reactive than $H$. While other oxides can be reduced by hydrogen as they are below hydrogen in the metal reactivity series.
Aluminium oxide cannot be reduced by hydrogen even under very hot conditions because $Al$ is more reactive than $H$. While other oxides can be reduced by hydrogen as they are below hydrogen in the metal reactivity series.
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