S Block Elements Question 67
Question: $ NaOH $ is prepared by the electrolysis of:
Options:
A) aqueous solution of sodium chloride with platinum electrodes
B) molten sodium chloride with graphite anode and iron cathodes
C) sodium carbonate with platinum electrodes
D) sodium carbonate with nickel electrodes
Show Answer
Answer:
Correct Answer: A
Solution:
[a] At anode: $ 2C{{l}^{-}}\to Cl_2+2e $ At cathode: $ 2{{H}^{+}}+2{{e}^{-}}\to H_2 $
BETA
