Electrochemistry Basics - Applications

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Q. In electrochemical cells, what does the salt bridge do?
  • A. Facilitates electron flow
  • B. Maintains charge balance
  • C. Increases reaction rate
  • D. Prevents gas buildup
Q. In electrochemical sensors, what is typically measured?
  • A. Current
  • B. Voltage
  • C. Resistance
  • D. Temperature
Q. In fuel cells, what is the role of the anode?
  • A. Oxidation of fuel
  • B. Reduction of oxygen
  • C. Storage of energy
  • D. Heat generation
Q. What is the main advantage of using electrochemical methods for wastewater treatment?
  • A. High efficiency
  • B. Low cost
  • C. Simplicity
  • D. No chemical residues
Q. What is the main advantage of using supercapacitors over traditional batteries?
  • A. Higher energy density
  • B. Faster charge and discharge rates
  • C. Lower cost
  • D. Longer lifespan
Q. What is the Nernst equation used for in electrochemistry?
  • A. Calculating cell potential
  • B. Determining reaction rate
  • C. Measuring pH
  • D. Assessing temperature changes
Q. What is the primary application of electrochemistry in batteries?
  • A. Energy storage
  • B. Water purification
  • C. Food preservation
  • D. Air filtration
Q. What is the primary function of a galvanic cell?
  • A. Convert chemical energy to electrical energy
  • B. Store electrical energy
  • C. Generate heat
  • D. Facilitate chemical reactions
Q. What is the primary purpose of a salt bridge in an electrochemical cell?
  • A. Maintain charge balance
  • B. Increase reaction rate
  • C. Enhance conductivity
  • D. Store energy
Q. What is the primary use of electrochemical sensors?
  • A. Detecting pollutants
  • B. Measuring temperature
  • C. Analyzing pressure
  • D. Monitoring humidity
Q. Which application of electrochemistry is used for corrosion prevention?
  • A. Anodic protection
  • B. Cathodic protection
  • C. Electrolysis
  • D. Electroplating
Q. Which electrochemical process is essential for the operation of a galvanic cell?
  • A. Spontaneous redox reaction
  • B. Electrolysis
  • C. Thermal decomposition
  • D. Photovoltaic effect
Q. Which electrochemical process is used in electroplating?
  • A. Reduction
  • B. Oxidation
  • C. Sublimation
  • D. Condensation
Q. Which electrochemical technique is commonly used for the detection of glucose in blood?
  • A. Potentiometry
  • B. Voltammetry
  • C. Conductometry
  • D. Spectrophotometry
Q. Which of the following is a common application of electrochemistry in corrosion prevention?
  • A. Cathodic protection
  • B. Anodic oxidation
  • C. Thermal treatment
  • D. Mechanical reinforcement
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