Quiz for cells

Q1: What type of cell converts chemical energy into electrical energy?

A. Electrolytic cell B. Galvanic cell C. Concentration cell D. Voltaic pile

Q2: In a galvanic cell, oxidation takes place at the:

A. Cathode B. Anode C. Salt bridge D. Electrolyte

Q3: The electrode where reduction takes place is called:

A. Anode B. Cathode C. Salt bridge D. Electrolyte

Q4: What is the role of a salt bridge in a galvanic cell?

A. Completes circuit B. Stops reaction C. Provides electrons D. Prevents ion flow

Q5: In which direction do electrons flow in a galvanic cell?

A. Anode to Cathode B. Cathode to Anode C. Salt bridge to electrode D. Electrolyte to salt bridge

Q6: The standard hydrogen electrode is assigned a potential of:

A. 0 V B. 1 V C. 2 V D. -1 V

Q7: A concentration cell works on the basis of:

A. Different pressure B. Different concentration C. Different electrodes D. Different temperature

Q8: Which of the following is a primary cell?

A. Lead-acid battery B. Daniell cell C. Dry cell D. Fuel cell

Q9: Fuel cells convert:

A. Thermal to electrical energy B. Mechanical to electrical energy C. Chemical to electrical energy D. Electrical to chemical energy

Q10: Cell potential is given by:

A. E = IR B. E = E° - 0.0591/n log Q C. E = Q/nF D. E = -nFE

Q11: Which component prevents mixing of solutions in a galvanic cell?

A. Electrodes B. Electrolyte C. Salt bridge D. Glass rod

Q12: In a Daniell cell, which metal acts as anode?

A. Zinc B. Copper C. Silver D. Iron

Q13: Which ion moves through the salt bridge toward the anode?

A. Cation B. Anion C. Electron D. Proton

Q14: Voltaic cells are another name for:

A. Electrolytic cells B. Galvanic cells C. Fuel cells D. Batteries

Q15: In a galvanic cell, the salt bridge prevents:

A. Flow of electrons B. Mixing of solutions C. Oxidation reaction D. Movement of ions

Q16: The unit of cell potential is:

A. Ampere B. Volt C. Ohm D. Joule

Q17: What does the cell notation Zn|Zn²⁺||Cu²⁺|Cu represent?

A. Electrolytic cell B. Fuel cell C. Galvanic cell D. Battery

Q18: Electrodes in a concentration cell are:

A. Different metals B. Same metals, same concentration C. Same metals, different concentration D. Different ions

Q19: The electrode with lower reduction potential acts as:

A. Cathode B. Salt bridge C. Anode D. Electrolyte

Q20: Which is a secondary cell?

A. Dry cell B. Fuel cell C. Nickel-cadmium cell D. Daniell cell