D-And F-Block Elements Ques 220
Question: Zn gives hydrogen gas with $ H_2SO_4 $ and $ HCl $ but not with $ HNO_3 $ because
[CBSE PMT 2002]
Options:
A) $ NO_2 $ is reduced in preference to $ H_3{{O}^{+}} $
B) $ HNO_3 $ is weaker acid than $ H_2SO_4 $ and $ HCl $
C) $ Zn $ acts as oxidising agent when reacts with $ HNO_3 $
D) In electrochemical series $ Zn $ is placed above the hydrogen
Show Answer
Answer:
Correct Answer: B
Solution:
$ 4Zn+10HNO_3\to 4Z{{(NO_3)}_2}+NH_4NO_3+3H_2O $
