question_answer

Read the given statements carefully.

I. Metals are generally ductile and metal W is the most ductile metal.

II. Metals generally possess high melting points but few metals like X have low melting point.

III. Metals are good conductors of electricity but metal Y is very poor conductor of electricity.

IV. Among metals, Z is the poorest conductor of heat.

W, X, Y and Z can be respectively

A)  Aluminium, sodium, lead and silver

B)  Gold, potassium, mercury and lead

C)  Copper, zinc, silver and mercury

D)  Iron, sodium, gold and lead.