Hydrogen And Its Compounds Question 201
Question: Hydrogen is not obtained when zinc reacts with
[J & K 2005]
Options:
A) Cold water
B) Hot $ NaOH $ solution
C) Conc. sulphuric acid
D) dilute $ HCl $
Show Answer
Answer:
Correct Answer: C
Solution:
$ Zn+H_2O\to ZnO+H_2 $
$ Zn+2NaOH\to Na_2ZnO_2+H_2 $
$ Zn+2HCl\to ZnCl_2+H_2 $
$ Zn+2H_2SO_4\to ZnSO_4+SO_2+2H_2O $ .
BETA
