Question

Synthetic detergents are preferred over soaps in hard water because______.

Options

• they are cheaper.

• they are biodegradable.

• they do not form scum.

• they produce more lather.

Answer 1

Synthetic detergents are preferred over soaps in hard water because they do not form scum.

Explanation:

Unlike soaps, synthetic detergents do not react with calcium and magnesium ions in hard water to form insoluble scum.