The electric batteries used in small calculators are?

Weston cell

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Leclanche cell

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Nickel-cadmium batteries

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Lead acid batteries

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Solution

The correct option is C Nickel-cadmium batteries
Nickel and cadmium cell/ batteries are used-
$C d (O H)_{2} + 2 e^{-} ⟶ C d (s) + 2 O H^{⊝} E^{o} = - 0.403$ $V$
$2 N i O (O H) + 2 H_{2} O + 2 e ⟶ 2 N i (O H)_{2} + 2 O H^{⊝} E^{o} = 1.32$ $V$
$E_{c e l l} = 1.72$

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Similar questions

Some of the batteries are rechargeable :

I : Dry cell battery

II : Lead-storage (acid) battery

III : Nickel-cadmium battery

IV : Lithium battery

V : Fuel cell

Select correct alternates :

Which of the following acid is used in car batteries?

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