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 $ .



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