Virtual Labs

Electrodeposition study using Amperometry technique.

Q1. Amperometry is a technique used to measure _______________

a: Current. Explanation

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b: Capacitance. Explanation

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c: Frequency. Explanation

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d: Resistance. Explanation

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Q2. Amperometry is based on _____________ law of Faraday

a: First and Second. Explanation

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b: Second. Explanation

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c: Third and fourth. Explanation

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d: Fourth. Explanation

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Q3. How does the current response in amperometry change with the concentration of the analyte?

a: It exhibits a linear increase with the analyte concentration. Explanation

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b: It conforms to a logarithmic relationship with the analyte concentration. Explanation

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c: It shows a linear decrease with the analyte concentration. Explanation

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d: It remains constant regardless of the analyte concentration. Explanation

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Q4. How does the current density relate to electrodeposition, in amperometry?

a: Higher current density leads to faster electrodeposition. Explanation

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b: Lower current density accelerates electrodeposition. Explanation

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c: Current density does not affect the electrodeposition rate. Explanation

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d: None of the above. Explanation

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Q5. Which of the following is a limitation of electrodeposition in amperometry?

a: It can only be used with liquids. Explanation

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b: Incompatibility with metals. Explanation

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c: It may lead to uneven deposition or contamination. Explanation

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d: Necessity for advanced expertise. Explanation

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Q6. How is amperometry utilized in the electrodeposition process for tungsten oxide thin film fabrication?

a: It increases the deposition rate. Explanation

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b: It decreases the deposition rate. Explanation

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c: It controls the deposition rate and thickness of WO3 thin films. Explanation

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d: None of the above. Explanation

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Q7. What type of graph is obtained in amperometry

a: Resistance-Frequency graph. Explanation

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b: Current-Time graph. Explanation

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c: Temperature-Pressure graph. Explanation

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d: Voltage-Time graph. Explanation

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Q8. What are the advantages of using Indium Tin Oxide (ITO) as a working electrode in electrochemical applications?

a: High transparency, electrical conductivity, and chemical stability. Explanation

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b: ITO is a dense and heavy material, making it ideal for stability in harsh chemical environments. Explanation

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c: The low electrical conductivity and poor chemical resistance of ITO make it unsuitable for working electrode applications. Explanation

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d: ITO is used as a thermal insulator due to its low thermal conductivity. Explanation

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