The reduction potential of elements K, L, M, and P are as given below.

The reduction potential of elements K, L, M, and P are as given below.



(i) Which letter represents the, strongest reducing agent? give a reason.

(ii) Which two letters represent elements whose half cells would form an electro chemical cell with the largest e.m.f?.

(iii) Calculate the e.m.f of the cell formed in (ii) above.

(d) During the electrolysis of a molten chloride of metal Q, a current of 0.25A was passed though the molten chloride for 2 hours and 10minutes. Given that 0.9grams of metal Q were deposited at the cathode.

(i) Calculate the quantity of electricity passed.

(ii) Charge carried by the ions of metal Q given that R.A.M of metal Q is 84.

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a)
- Electrolysis is the chemical decomposition of an electrolyte using electrical energy

b)
- Complete the circuit by making contact between the two solutions
- Maintains balance of charges in electrolytes by providing ions to replace those that are used up or those that are formed.

c)
i) M – it has the most negative ???? value
ii) M and N

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marto answered the question on October 11, 2019 at 11:18

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