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प्रश्न
Define the following terms: Secondary batteries
उत्तर
Secondary batteries can be recharged by passing current through them in the opposite direction. Examples of secondary batteries include a lead storage battery and a nickel–cadmium cell.
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संबंधित प्रश्न
Write cell reaction in lead storage battery during discharge.
Define electrochemical cell
Why does the cell potential of mercury cell remain constant throughout its life?
From the given cells:
Lead storage cell, Mercury cell, Fuel cell and Dry cell
Answer the following:
(i) Which cell is used in hearing aids?
(ii) Which cell was used in Apollo Space Programme?
(iii) Which cell is used in automobiles and inverters?
(iv) Which cell does not have long life?
What type of battery is mercury cell? Why is it more advantageous than dry cell?
Define terms: Fuel cell
In the button cells widely used in watches and other devices, the following reaction takes place:
\[\ce{Zn_{(s)} + Ag2O_{(s)} + H2O_{(l)} -> Zn^{2+}_{( aq)} + 2Ag_{(s)} + 2OH^-_{( aq)}}\]
Determine ΔrGΘ and EΘ for the reaction.
Without losing its concentration; ZnCl2 solution cannot be kept in contact with
Why does the cell voltage of a mercury cell remain constant during its lifetime?
Which one of the following statements is correct regarding the dry cell?
(P) Zinc container acts as an anode in dry cell.
(Q) Zinc container touches the paste of MnO2 and carbon.
(R) Dry cell can be charged easily.
(S) Graphite rod acts as a cathode in dry cell.
