Variation of current with concentration change

Answer the following questions:

1. What conclusion was made from  the graph of i (current) against c (concentration of solution)?
current is directly proportional to concentration of solution; i µ c
current is inversely proportional to concentration of solution; i µ c-1
current is directly proportional to the square of concentration of solution; i µ c2
current is directly proportional to the cube of concentration of solution; i µ c3
2. The current increases when concentration increases because:
ions travel faster through the wires
the emf pushes a larger number of ions through the solution in a given time
a larger number of ions travel to the electrodes per second
the solution now has less resistance.
3.Cations pick up electrons at the target electrode true false
4.Anions lose electrons at the target electrode true false
5.Cations carry charge from anode to cathode true false
6.Anions carry charge from cathode to anode true false
7.Increased concentration causes electrons to move faster through the wires true false

(attempted)  (maximum 7)

Answer questions on the effect on current of changes in voltage, separation of electrodes.

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