Question

Select the true statement below.

a. the relatively high potential of the lithium-ion battery is due to lithium being a strong oxidizer

b. a hydrogen fuel cell is an electrolytic cell which produces H2 fuel for combustion

c. rusting of metal A may be inhibited by alloying or coating metal A with a less reactive metal B

d. batteries act as galvanic/voltaic cells during discharge, and as electrolytic cells during recharge

e. the presence of aqueous H3O+ ions inhibits rust formation

Answer 1

A) False - Lithium is a strong reducing agent, not an oxidizer

B) False -  In electrolytic an endothermic reaction occurs and during combustion of H2 exothermic reaction occurs

C) True - reaction time of less reactive metals is so large. So it will not react fast and easily as reactive metal and able to retain their initial state for longer time  

D) True - because galvanic/voltaic cells release energy which means cells is discharging and In electrolytic an endothermic reactions occurs that means electrolytic cells is charging.

E) False - In presence of H3O+ (acidic character ) rust formation will occur fast because iron will react with H+ and will form a various product.

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