Embibe Experts Solutions for Chapter: Metallurgy, Exercise 1: West Bengal Board-2018

In which of the following alloys is zinc present?

Give one use each of copper and aluminium.

What are present along with pure alumina in the molten mixture which is electrolysed for the extraction of aluminium by electrolysis? What is used as cathode and anode in this electrolysis?

Mention two ways of preventing rusting of iron.

Write the name and formula of one ore of iron.

The formula of red haematite, an ore of iron is

Write the balanced chemical equation of the reaction for the formation of metallic iron from ferric oxide by thermit process. Write an application of the process. 

Write the balanced chemical equation of the reaction that occurs when a piece of metallic iron is added to an aqueous solution of ${\mathrm{CuSO}}_4$, What information is obtained from this reaction about the relative position of $\mathrm{Cu}$ and $\mathrm{Fe}$ in the activity series of metals?