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 (incomplete, requires context for scientific accuracy)
Options:
A) I, II, III, IV
B) I, II, III
C) II, IV
D) I, III, V
Show Answer
Answer:
Correct Answer: B
Solution:
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\cdot2H_2O+H_2 $
BETA
