Which one of the following statement is not true for Daniel cell ?

The e.m.f. of this cell changes rapidly

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Some crystals of copper sulphate are added in it to make the solution saturated

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This cell was made first of all in 1850 by the scientist Daniel

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The hollow cylinder or the vessel of copper acts as the positive plate

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Solution

The correct option is A The e.m.f. of this cell changes rapidly
The e.m.f of a Daniel cell always remains constant and is equal to $1.08$ volts.
And all the other statements given are true.

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Similar questions

1.083 v o l t

- 0.018 v o l t

25^{\circ} C

+ 0.28

E_{c e l l} = E {_{c e l l}}^{0} + \frac{0.059}{2} l o g \frac{[C u^{2 +}]}{[Z n^{2 +}]}

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