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प्रश्न
Give reason for the following:
Zinc is used in galvanization and dry cells.
उत्तर
Zinc is used in galvanization and dry cells because zinc coating protects the iron from corrosion as it is more electropositive than iron hence it would be attacked first.
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संबंधित प्रश्न
State on what special properties the use of each of these metals depends:
zinc
State the use of:
cast iron
State amalgam use with an example.
From the metals: copper, iron, magnesium, sodium, and zinc, select a different metal in the case which arranges the above metals in the decreasing order of reactivity.
Complete the statement using every given option.
During the extraction of aluminium.........
Heating the aluminium ore with concentrated caustic soda.
Define the term : Ore
What is an alloy? Give three reasons why alloys are made.
Explain the following:
Aluminium is extensively used for making aircraft parts.
What is an alloy? An alloy usually has some property which makes it useful in a specific way.
What is the special property of: Duralumin
Name : The processes involved in Refining of ores
