Question

Which statement concerning batteries and fuel cells is incorrect? A fuel cell uses the reduction of...

Which statement concerning batteries and fuel cells is incorrect?

A fuel cell uses the reduction of atmospheric oxygen as the cathode.

A lithium ion battery is a secondary battery that use lithium in both the anode and the cathode.

An alkaline battery is a primary battery with a zinc anode, manganese cathode, and KOH as the electrolyte.

A lead-acid battery is a secondary battery that uses lead in both the anode and the cathode, and uses sulfuric acid as the electrolyte.

A Ni-Cad battery is a secondary battery with a nickel anode and cadmium cathode.

Homework Answers

Answer #1

Option E is incorrect because in Ni-Cd battery is a secondary battery with a cadmium anode and nickel cathode.

Primary battery - the batteries cannot be used again. Only once it can be used. These batteries are not rechargeable.

Secondary battery - the batteries can be used again. These batteries are rechargeable.

A fuel cell uses the reduction of atmospheric oxygen as the cathode. - correct

A lithium ion battery is a secondary battery that use lithium in both the anode and the cathode. - correct

Lithium is used in anode as well as cathode for the discharge and recharge.

Alkaline battery - only once can be used, not rechargeable, primary battery. Anode = Zn, cathode = Mg, electrolyte = KOH

Lead acid battery -rechargeable, secondary battery. Anode = Pb, cathode = Pb, electrolyte = H2SO4

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