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ICSE SEMESTER 1 EXAMINATION SPECIMEN QUESTION PAPER

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Identify one statement that does not hold true for electrorefining of copper: 1. Electrolyte is acidified CuSO 4 solution 2. Cathode is a thin strip of impure copper 3. Anode dissolves in the electrolyte 4. Anode gets thicker. [1] Question 17 The observation when ammonium chloride reacts with potassium hydroxide: 1. A reddish brown gas 2.

  Copper, Electrorefining of copper, Electrorefining

Electrorefining of Copper - UFRGS

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hardening. Copper wire is readily tinned, has excellent soldering characteristics, and resists corrosion at contact points. Figure 6.3.1 shows the flow of copper from cathode through to copper wire and the relative demand for the various wire types. • Figure 6.3.1. Wire production from copper cathodes.

  Copper, Hardening, Electrorefining of copper, Electrorefining

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