Chemistry-
General
Easy
Question
A solution of CuSO4 is electrolysed using platinum inert electrodes. Due to electrolysis, the colour changes from blue to _________ and pH of the solution ________.
- red, unaltered
- colourless, increases
- blue, decreases
- colourless, decreases,
The correct answer is: colourless, decreases,
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a)
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A hydrogen electrode placed in a buffer solution of CH3COONa and acetic acid in the ratio's x:y and y:x has electrode potential values E1 volts and E2 volts respectively at 25oC. The pKa values of acetic acid is (E1 & E2 are oxidation potential).
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