Redox Reactions And Electrochemistry Question 166
Question: In the electrolysis of water, one Faraday of electrical energy would evolve [DCE 2004]
Options:
A) One mole of oxygen
B) One g atom of oxygen
C) 8 g of oxygen
D) 22.4 litres of oxygen
Show Answer
Answer:
Correct Answer: C
Solution:
Hydrolysis of water : $ 2H_2O $ ⇌ $ 4{H^{+}}+4{e^{-}}+O_2 $ 4 F charge will produce = 1 mole $ O_2=32\ gm\ O_2 $ 1 F charge will produce $ =\frac{32}{4}=8\ gm\ O_2 $ .
BETA
