Why is aluminium smelting industry close to power sector? describe other important factors necessary for location of aluminium smelting industry. why is this industry gaining importance? give reasons.

Because it first needs to purified by electrolysis and electrolysis requires alot of electricity thus it needing so much power. other factors may include it being far from populated areas.Sorry idk the rest

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.