In a dry cell , which of the following are used as a electrolyte ?a)Ammonium chloride and zinc chlorideb)Sodium chloride and calcium chloridec)Ammonium chloride and calcium chlorided)Magnesium chloride and ammonium chloridee)None of the above/More than one of the aboveCorrect answer is option 'A'. Can you explain this answer?

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In a dry cell , which of the following are used as a electrolyte ?

a)
Ammonium chloride and zinc chloride
b)
Sodium chloride and calcium chloride
c)
Ammonium chloride and calcium chloride
d)
Magnesium chloride and ammonium chloride
e)
None of the above/More than one of the above

Correct answer is option 'A'. Can you explain this answer?

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In a dry cell , which of the following are used as a electrolyte ?a)Am...

Dry cell

In the primary batteries, the reaction occurs only once and after use over a period of time battery becomes dead and cannot be reused again.The most familiar example of this type is the dry cell which is used commonly in our transistors and clocks.
The cell consists of a zinc container that also acts as anode and the cathode is a carbon (graphite) rod surrounded by powdered manganese dioxide and carbon .
The space between the electrodes is filled by a moist paste of ammonium chloride (NH₄Cl) and zinc chloride (ZnCl₂).
The electrode reactions are complex, but they can be written approximately as follows :
In the reaction at cathode, manganese is reduced from the + 4 oxidation state to the +3 state. Ammonia produced in the reaction forms a complex with Zn²⁺ to give [Zn (NH₃)₄] ²⁺. The cell has a potential of nearly 1.5 V.

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In a dry cell , which of the following are used as a electrolyte ?a)Am...

Dry cell

In the primary batteries, the reaction occurs only once and after use over a period of time battery becomes dead and cannot be reused again.The most familiar example of this type is the dry cell which is used commonly in our transistors and clocks.
The cell consists of a zinc container that also acts as anode and the cathode is a carbon (graphite) rod surrounded by powdered manganese dioxide and carbon .
The space between the electrodes is filled by a moist paste of ammonium chloride (NH₄Cl) and zinc chloride (ZnCl₂).
The electrode reactions are complex, but they can be written approximately as follows :
In the reaction at cathode, manganese is reduced from the + 4 oxidation state to the +3 state. Ammonia produced in the reaction forms a complex with Zn²⁺ to give [Zn (NH₃)₄] ²⁺. The cell has a potential of nearly 1.5 V.

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In a dry cell , which of the following are used as a electrolyte ?a)Ammonium chloride and zinc chlorideb)Sodium chloride and calcium chloridec)Ammonium chloride and calcium chlorided)Magnesium chloride and ammonium chloridee)None of the above/More than one of the aboveCorrect answer is option 'A'. Can you explain this answer?

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