question_answer

                                               

(a) All the metals are malleable and ductile except few. Which are those metals (neither malleable nor ductile).

(b) Metals are used for making electric wires. Name at least one metal and why these metals are used in making electric wires.

Answer:

(a) Zinc (Zn), Sodium (Na), Potassium (K) and Lead (Pb) are those metals which are non-malleable and non-ductile.

(b) Copper (Cu) is the metal used for making electrical wires because of good electrical conductivity. Metals are used in making electric wires as they are the good conductors of heat and electricity.