P-Block Elements Ques 543
Question: Lead is not affected by dil. $ HCl $ in cold because
Options:
A) Pb is less electronegative than H
B) PbO film is formed which resists chemical attack by acid
C) $ PbCl_2 $ protective coating gets formed on Pb surface
D) $ PbO_2 $ film is always present on Pb surface, which resist chemical attack
Show Answer
Answer:
Correct Answer: C
Solution:
Pb with dil. $ HCl $ forms protective coating of $ PbCl_2 $ .
