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(a) A cell is prepared by dipping a zinc...

(a) A cell is prepared by dipping a zinc rod in 1M zinc sulphate solution and a silver electrode in 1M silver nitrate solution. The standard electrode potential given :
`E^(@)Zn_(2+1//Zn) = -0.76V, E^(@)A_(g+//)A_(g) = +0.80V`
What is the effect of increase in concentration of `Zn^(2+) " on the " E_(cell)` ?
(b) Write the products of electrolysis of aqueous solution of NaCI with platinum electrodes.
(c) Calculate e.m.f. of the following cell at 298 K:
`"Ni(s)"//"Ni"^(2+)(0.01M)////"Cu"^(2+)(0.1M)//"Cu(s)"`
`["Given"E_(Ni2+//Ni)^(@) = -0.025 V E_(Cu2+//Cu)^(@) = +0.34V]`
Write the overall cell reaction.

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