Lead pipes are not used for carrying drinking water because

Options

A. They are covered with a coating of lead carbonate
B. They are corroded by air and moisture
C. Water containing dissolved air attacks lead forming soluble hydroxide
D. None of the above.

Answer

C

Explanation

Due to plumbosolvancy, lead dissolves in water to a small extent to form soluble hydroxide which is poisonous so lead pipe is not used for carrying drinking water.