Question

Lead is soluble in:

• A. $ C{{H}_{3}}COOH $
• B. $ {{H}_{2}}S{{O}_{4}} $
• C. $ HCl $
• D. $ HN{{O}_{3}} $

Answer 1

Answer: (D)

Lead is soluble in dil. $ HN{{O}_{3}} $ . However, it becomes passive towards cone. $ HN{{O}_{3}} $ . $ 3Pb+\underset{dil.}{\mathop{8HN{{O}_{3}}}}\,\xrightarrow{\Delta }3Pb{{(N{{O}_{3}})}_{2}}+2NO+4{{H}_{2}}O $