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प्रश्न
Give the constituents and one use of brass.
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उत्तर
Brass is an alloy of copper and zinc. Composition of brass is copper (80 percent) and zinc (20 percent). Brass is used for making vessels and scientific instruments (e.g.microscope).
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संबंधित प्रश्न
Tinning : Tin : : Galvanizing : _________
What is meant by galvanisation? Why is it done?
Fill in the following blank with suitable word:
The process of depositing a thin layer of zinc on iron articles is called .............
Why is an iron grill painted frequently?
What is corrosion?
Name five methods of preventing rusting of iron.
A common metal which is highly resistant to corrosion is:
(a) iron
(b) copper
(c) aluminium
(d) magnesium
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Name the metal which is a constituent of plant pigment?
What is corrosion? What are necessary conditions for corrosion?
State under what conditions corrosion is faster ?
Find the odd man out:
What is done to prevent corrosion of metals?
Give reason.
An iron article should be given a coat of paint
Give reason for the following:
A suspension of rust is basic in nature.
State whether the statement given below is true or false. If false write the correct statement.
Either oxygen or moisture is essential for rusting.
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Write scientific reason.
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Draw a neat labelled diagram.
Electroplating
Write a molecular formula for rust.
