Related Questions

তড়িৎ রাসায়নিক কোষের emf = ?i. E° Anode(ox) + E°Cathode (Red) 11. E Cathode(Red) - E°Anode (Red) 111. E° Anode(ox) - E°Cathode (Red) নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
Which of the following acids serves as an electrolyte in a lead storage battery?
A Sulphuric acid
B Lactic acid
C Hydrochloric acid
D Nitric acid
Which acid is used in Lead storage battery?
A Sulphuric acid
B Nitric acid
C Hydrochloric acid
D Acetic acid
When a lead storage battery is discharged,
A SO2 is evolved
B Lead sulphate is consumed
C Lead is formed
D Sulphuric acid is consumed
In a battery cover is placed over the element and sealed to the top of the battery container. This is done
A to reduce evaporation of water from electrolyte
B to exclude dirt and foreign matter from the electrolyte
C to discharge both of the above functions
D to discharge none of the above functions
The battery is an electrochemical device, which means battery
A Makes chemicals by mechanical means
B Uses chemical action to provide electricity
C Has curved plates instead of flat plates
D Does not use an electrolyte
The metallic sheath may be made of lead or lead alloy or of aluminum.
A Yes
B No
The negative plates of a lead acid battery has
A Lead peroxide (PbO2)
B Spongy lead (Pb)
C Lead sulphate (PbSO4)
D Sulphuric acid (H2SO4)
The positive plates of a lead acid battery has
A Lead peroxide (PbO2)
B Spongy lead (Pb)
C Lead sulphate (PbSO4)
D Sulphuric acid (H2SO4)
During charging the specific gravity of the electrolyte of a lead-acid battery
A increases
B decreases
C remains the same
D becomes zero

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