Hydrogen And Its Compounds Question 252
The hydride ion $ {H^{-}} $ is a stronger base than its hydroxide ion $ OH^{-} $ . Which of the following reactions will occur if sodium hydride $ ( NaH ) $ is dissolved in water-
Options:
A) $ {H^{-}}(aq)+H_2O\to H_3{O^{-}} $
B) ${H^{-}}( aq )+H_2O( l )\to OH^{-}( aq )+H_2( g )$
C) $ {H^{-}}~+H_2O\to $ No reaction
D) None of these
Show Answer
Answer:
Correct Answer: B
Solution:
$ {H^{-}}( aq )+H_2O( l )\to OH^{-}+H_2. $ Since H- is a strong base it will abstract $ {H^{+}} $ to form $ H_2O $
BETA
