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Microbial Fuel Cell UPSC. We covered all the Microbial Fuel Cell UPSC in this post for free so that you can practice well for the exam.
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Microbial Fuel Cell UPSC Objective for Students
Among Cu, Ag, Fe, and Zn, which metal can displace all the others from their Salt solutions?
a) Ag
b) Cu
c) Fe
d) Zn
Option d – Zn
In a hydrogen–oxygen fuel cell, hydrogen combustion serves to
a) Remove oxygen adsorbed on the electrode
b) Generate a potential difference between electrodes
c) Produce high-purity water
d) Release Heat
Option b – Generate a potential difference between electrodes
Which type of cell has a longer lifespan and is more costly to produce?
a) Lead storage cell
b) Dry cell
c) Mercury cell
d) Nickel–cadmium cell
Option d – Nickel–cadmium cell
Which colorless gas is released when NH₄Cl reacts with zinc in a dry cell?
a) N₂
b) Cl₂
c) H₂
d) NH₃
Option c – H₂
Which statement correctly describes secondary cells?
a) They cannot be reused
b) They cannot be recharged
c) They can undergo many charging and discharging cycles
d) All of the above
Option c – They can undergo many charging and discharging cycles
Which metal cannot displace hydrogen from dilute H₂SO₄ solution?
a) Ag
b) Al
c) Zn
d) Fe
Option a – Ag
Hydrogen–oxygen fuel cells are used in spacecraft to provide
b) power for maintaining pressure
c) Oxygen
d) Water
We covered all the microbial fuel cell UPSC above in this post for free so that you can practice well for the exam.
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