Question

they remain effective in hard water why

Answer 1

$\huge\bf{Question}$

they remain effective in hard water why?

$\huge\bf{Answer}$

• ✔Detergents ar generally ammonium or sulphate salts.
• ✔the charged end of these compounds do not form insoluble percipitates with the calcium and magnesium ions in hard water which are responsible for the formation of scum.
• ✔Thus They remain effective in hard water and do not scum in hard water.
• ✔when soap is added to hard water the Ca2+ and Mg2+ present in hard water react with soap