Question

Lead pipes are not suitable for drinking water because:

• A. lead reacts with air to form litharge
• B. lead reacts with water containing air to form $Pb{{(OH)}_{2}}$
• C. a layer of lead dioxide is deposited over pipes
• D. lead forms basic lead carbonate

Answer 1

Answer: (B)

lead reacts with water containing air to form $Pb{{(OH)}_{2}}$

Answer 2

Lead is readily corroded by water. It form lead hydroxide with water and oxygen present in it. It is called plumbosolvency. $2Pb+2{{H}_{2}}O+{{O}_{2}}\xrightarrow{{}}2Pb{{(OH)}_{2}}$