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Factors Affecting Electrolysis

During the el...

Question

During the electrolysis of copper (Ⅱ) sulphate solution using platinum as cathode and carbon as anode “State what you observe at the cathode and at the anode”

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Solution

It is observed that,
1.Reddish-brown copper metal is deposited at the cathode by accepting two electrons
At cathode: $C u^{2} + 2 e^{-} \to C u (s)$
2.Bubbles of oxygen gas evolves at an anode.
At anode: $4 O H^{-} \to 2 H_{2} O + O_{2} + 4 e^{-}$

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(a) Give reason: The electrolysis of acidulated water is considered to be an example of catalysis.

(b) During the electrolysis of copper [II] sulphate solution using platinum as cathode and carbon as anode

(i) State what you observe at the cathode and at the anode

(ii) State the change noticed in the electrolyte

(iii) Write the reactions at the cathode and at the anode.

(c) Differentiate between electrical conductivity of --- copper sulphate solution and of copper metal.

during the electrolysis of copper [II] sulphate solution using platinum as cathode and carbon as anode :

1) state what you observe at the cathode and at the anode.

2)state the change noticed in the electrolyte .

3)write the reaction at the cathode and at the anode.

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Q. During the electrolysis of copper [II] sulphate solution using platinum as cathode & carbon as anode, the reactions at the cathode is :

Q. State the observations at the anode and at the cathode during the electrolysis of:
Copper sulphate solution using copper electrodes.

Q. During the electrolysis of copper (Ⅱ) sulphate solution using platinum as cathode and carbon as anode “State the change noticed in the electrolyte”.

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Factors Affecting Electrolysis

Standard X Chemistry

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