Hydrogen And Its Compounds Question 203
Question: Out of the following metals which will give $ H_2 $ on reaction with NaOH-
I: Zn,
II: Mg,
III: Al,
IV: Be
Options:
A) I, II, III, IV
B) I, II, IV
C) II, IV
D) I, III
Show Answer
Answer:
Correct Answer: B
Solution:
[b] In IIA group only be gives, $ H_2 $ gas with alkaline solution other alkaline earth metals don’t react. $ Be+2NaOH+2H_2O\to Na_2BeO_2.2H_2O+H_2 $
BETA
