Question

3 In DME when the drop gets detached, the current becomes -------- a)Maximum b)zero c)minimum
d) average
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Answer 1

Answer:

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Answer 2

In DME when the drop gets detached, the current becomes zero.

• The full form of DME is Dropping the Mercury Electrode. It is widely used as a cathode in polarography and amperometric titration.
• Here every single drop of mercury brings the potential energy to the solution of electrolyte and electroactive species and current is generated.
• Thus when the drops get detached the current of the system becomes zero.
• Hence the correct option is b.