List of top Chemistry Questions on industrial waste asked in AP EAMCET

The correct statements regarding Hall-Héroult process are:
  • [i.] Steel vessel with lining of carbon acts as anode.
  • [ii.] Purified Al\(_2\)O\(_3\) is mixed with cryolite.
  • [iii.] The overall reaction is \( 2\text{Al}_2\text{O}_3 + 3\text{C} \rightarrow 4\text{Al} + 3\text{CO}_2 \).
The non-biodegradable waste formed in fertilizer industries is