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प्रश्न
Write three methods of preventing rusting of iron.
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उत्तर
Three methods of preventing rusting of iron:
A. Galvanizing: It is a process of giving a thin coating of zinc on iron or steel to protect them from corrosion, E.g. shiny iron nails. pins etc.
B. Rusting of iron can be prevented by coating it with paint, oil, grease or varnish.
C. Tinning: In this process thin layer of tin is coated over iron objects.
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संबंधित प्रश्न
What is an alloy?
Give reasons:
Platinum, gold and silver are used to make jewellery.
Two methods by which rusting of iron can be prevented are ______ and ______.
Explain why Iron sheets are coated with zinc during galvanization.
Explain why, iron sheets are coated with zinc.
What is the corrosion of iron known as?
What are the special properties of stainless steel?
Compare roasting and calcination.
What are the adverse effects of corrosion?
Give reason.
An iron article should be given a coat of paint
Give reason.
A wooden article should be polished.
Find the odd one out and give its explanation.
Match the columns.
| Group A | Group B |
| 1) Electroplating | a) Pressure cooker |
| 2) Anodising | b) Silver plated spoons |
| c) Coating of tin on copper | |
| d) Coating of Zinc on iron |
Explain concept with example/explain with the help of a balanced equation.
Corrosion
Draw a neat labelled diagram.
Electroplating
What is rust?
State two conditions necessary for rusting of iron.
Amalgam is an alloy of ____________.
Which among the following alloys contain mercury as one of its constituents?
State whether the following statement is true or false:
Ships suffer a lot of damage though they are painted.
