Which of the following is an example of secondary cell?

Lead storage cell
Leclanche dry cell
Daniell cell
Hydrogen cell
Lead storage cell  A secondary cell is a rechargeable battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or primary cell, which is supplied fully charged and discarded after use. The chemical reaction in a secondary cell is reversible and it has low internal resistance. It can supply both low current and high current. Example: Li-H Battery, Nickel-cadmium (NiCd) battery, lead storage battery

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D. phenols
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A. uniform
B. not uniform
C. zero
D. none of above
In the body, the weight of blood is about
A. 1/12th of body
B. 1/5th of body
C. 1/8th of body
D. 1/4th of body
Which substance is present in fuel?
A. Iron
B. Gold
C. Carbon
D. Copper
The energy stored in coal is
A. kinetic energy
B. potential energy
C. chemical energy
D. nuclear energy
A human breath per minute is
A. 16-30 times
B. 16-20 times
C. 15-20 times
D. 15-18 times
Symbol of Copper is
A. Ca
B. Cl
C. Co
D. Cu

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