Question

A drop `(0.05 mL)` of `12 M HCl` is spread over a thin sheet of aluminium foil ( thickness `0.10mm` and density of `Al=2.70g//mL`). Assuming whole of `HCl` is used to dissolve `Al`, what will be maximum area of hole produced in foil ?

Answer 1

Correct Answer - `0.2 cm^(2)`;