AP EAMCET202315 May 2023Morning ShiftChemistryElectrochemistryActual
In the Kolbe electrolysis of sodium propanoate, the products X and Y are formed at respected electrodes. What are X and Y ?
Options
- AX = CH ₃- CH ₂- CH ₂- CH ₃ at Cathode; Y = H ₂ at Anode
- BX = CH ₃- CH ₂- CH ₃ at Cathode; Y = H ₂ at Anode
- CX = CH ₃- CH ₂- CH ₂- CH ₃ at Anode; Y = H ₂ at Cathode
- DX = CH ₃- CH ₃ at Anode; Y = H ₂ at Cathode
Correct answer
C. X = CH ₃- CH ₂- CH ₂- CH ₃ at Anode; Y = H ₂ at Cathode
Step-by-step solution
2 CH ₃ CH ₂ CO O ^2 Na [2 H ₂ O ] electrolysis CH ₃ CH ₂- CH ₂ CH ₃+2 CO ₂+ H ₂+2 NaOH At anode (oxidation): At cathode (reduction): aligned & 2 H ₂ O +2 e ⁻ 2 OH ⁻+2 H ⁺ & 2 H ⁺ H ₂( Y ) & 2 Na ⁺+2 OH ⁻ 2 NaOH aligned