P-Block Elements Ques 500
Question: When $ PbO_2 $ reacts with conc. $ HNO_3 $ the gas evolved is
[IIT-JEE (Screening) 2005]
Options:
A) $ NO_2 $
B) $ O_2 $
C) $ N_2 $
D) $ N_2O $
Show Answer
Answer:
Correct Answer: B
Solution:
$ PbO_2 $ is a powerful oxidizing agent and liberate $ O_2 $ when treated with acids $ SO,\ O_2 $ gas will be evolved.