Question

standard unit zero capacity is​

Answer 1

A container may have a capacity of 10 cubic meter, A gun's magazine may have a capacity of 20 rounds. A Liberal may have a zero capacity for logical thought. If you mean electric capacity , as in a capacitor, the unit is the Farad (F), named after Faraday

Answer 2

$\huge\bold{Answer}$

Litre is the standard unit of capacity and the smaller unit of capacity is millilitre.

$\bold{Hope \: this\:helps}$