s-Block ElementsHard
Question
What products are formed during the electrolysis of a concentrated aqueous solution of sodium chloride ?
I. Cl2 (g) , II . NaOH (aq). , III. H2(g).
I. Cl2 (g) , II . NaOH (aq). , III. H2(g).
Options
A.I only
B.I and II only
C.I and III only
D.All of these
Solution
NaCl → Na+ + Cl-; 2 Cl- → Cl2↑ + 2e-
HOH → H+ + OH- ; 2H+ + 2e- → H2 ↑ ; Na+ + OH- → NaOH.
HOH → H+ + OH- ; 2H+ + 2e- → H2 ↑ ; Na+ + OH- → NaOH.
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