“The pH of bleach is around 12 depending on manufacturer. All bleaches are highly basic or alkaline, hence the reason for their high pH values. The most common brand of bleach, Clorox, is 6% sodium hypochlorite and has a pH of 12.6.”
Technically bleach isn’t an acid. /s
Bleach software remove sectors from disc, delete them , format them. scramble them etc.