- Plate A: Pure copper
- Plate B: Impure copper
- The solution: Copper sulphate
Copper from impure copper plate is transferred to the pure copper plate by the process of electroplating.
Question
Observe the circuit given below. Boojho set up this circuit for purification of copper. What will be the nature of a. plate A, b. plate B, c. the solution?
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Observing that the bulb does not glow in the circuit shown below in A, Boojho changed the circuit as shown in B. He observed deflection in the magnetic compass. a. What does the deflection in magnetic compass indicate? b. Why did the bulb not glow in A? c. What would be the effect of increase in the number of turns in the coil wound around the magnetic compass in B? d. What will be observed if the number of cells is increased in the circuit shown in B?
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In the circuit given below, Boojho observed that copper is deposited on the electrode connected to the negative terminal of the battery. Paheli tried to repeat the same experiment. But she could find only one copper plate. Therefore she took a carbon rod as negative electrode. Will copper be still deposited on the carbon rod? Explain your answer.
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