What will be the product at the cathode during the electrolysis of brine in a Nelson's cell?
Correct answer: A. H2
- A. H2
- B. Na
- C. CO2
- D. O2
Explanation
Brine is a highly concentrated solution of NaCl. Cathode is where reduction takes place and oxidation takes place on anode. In Brine there are two cations : H+ and Na+. Since hydrogen ion has a higher reduction potential (0.0V) than sodium ion (-2.71V), it will be reduced at cathode forming hydrogen gas.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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