Redox Reactions And Electrochemistry Ques 136
Question: Which one of the following metals cannot evolve $ H_2 $ from acids or $ H_2O $ or from its compounds [MP PET/PMT 1988; CPMT 1996; AFMC 1998, 99; Pb. PET 1999; BVP 2003]
Options:
A) $ Hg $
B) $ Al $
C) $ Pb $
D) $ Fe $
Show Answer
Answer:
Correct Answer: A
Solution:
$ Hg $ has greater reduction potential than that of $ {H^{+}} $ and hence cannot displace hydrogen from acid.
