English Medium Class 10 - CBSE Question Bank Solutions

Explain why, iron sheets are coated with zinc.

State two conditions for the rusting of iron.

In one method of rust prevention, the iron is not coated with anything. Which is this method?

The corrosion of iron is called ______.

The process of depositing a thin layer of zinc on iron articles is called ______.

Tiffin boxes are electroplated with ______ but car bumpers are electroplated with ______ to protect them from rusting.

The corrosion of copper produces a ______ coating of basic copper carbonate on its surface.

______ and ______ are necessary for the rusting of iron.

Why is an iron grill painted frequently?

Explain why, though aluminium is more reactive than iron, yet there is less corrosion of aluminium when both are exposed to air.

What is corrosion?

Name any two metals which do not corrode easily.

What is the corrosion of iron known as?

With the help of labelled diagrams, describe an activity to find out the conditions under which iron rusts.

Give the constituents of brass.

Name two metals which resist corrosion due to the formation of a thin, hard and impervious layer of oxide on their surface.

Name five methods of preventing rusting of iron.

What are the constituents of stainless steel?

What are the special properties of stainless steel?

Name an alloy of copper. State its chemical composition and any one use.