Rohit has performed an activity to test whether the following materials conduct electricity or not by putting them in the circuit, one at a time as shown in the figure.

Materials X and Y could be

Options

A. X-1,3,4,6, Y-2,5
B. X-1,5,6, Y-2,3,4
C. X-1,3,6, Y-2,4,5
D. X-2,3,4,5, Y-1,6

Answer

A

Explanation

Metals are good conductor of electricity e.g., aluminium foil, copper wire and silver coin. Non-metals are poor conductor of electricity e.g., a piece of stone, sulphur, except graphite which is a good conductor of electricity.