State two appropriate observations for the above electrolysis reaction.

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Solution

The observations are:
a) Reddish brown coloured copper metal is deposited at the cathode.
b) The blue colour of the aq. copper sulphate solution does not fade during the electrolysis.

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(a) State one appropriate observation for: Electricity is passed through molten lead bromide.

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C H_{3} C H_{2} C O O K (a q) \to C H_{3} C H_{2} C H_{2} C H_{3}

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