Choose the INCORRECT Statement

Multiple Choice

Choose the INCORRECT statement.

A) Temporary hard water contains the bicarbonate ion.
B) Permanent hard water also contains anions other than bicarbonate.
C) Ion exchange is accomplished by mixing chemicals in the water to precipitate hard water ions.
D) Deionized water is water with ions removed by ion exchange.
E) Boiler scale is a mixed precipitate of CaCO₃, MgCO₃, and rust.