Question

Observe the following figure and answer the questions:
1) Remove the lead from a pencil,feel it with your fingers. What colours is it?Try to break the lead with your hand.
2) assemble the appartus as shown in the figure,. Start the electric current in the circuit. Observe . What did you find?
3) take some water in a test tube . Take some kerosene in another test tube . Put lead dust in both the test tubes . What did you find ?

Answer 1

1)black

3)hcydurcutvutd