Question : Galvanisation is the
Option 1: deposition of zinc on iron
Option 2: deposition of tin on iron
Option 3: deposition of copper on iron
Option 4: deposition of aluminium on iron
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Correct Answer: deposition of zinc on iron
Solution : The correct answer is the deposition of zinc on iron.
Galvanisation is the technique of applying a protective zinc coating to iron or steel objects. This process shields the outer surface of the iron, safeguarding it against rusting and corrosion. Achieved through immersion in a bath of molten zinc, it is commonly referred to as the "hot dip" method.
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Question : Brass is an alloy of
Option 1: lead and tin
Option 2: zinc and copper
Option 3: antimony, tin and lead
Option 4: zinc, tin and copper
Question : The process of depositing a layer of zinc on iron is called:
Option 1: galvanisation
Option 2: filtration
Option 3: sedimentation
Option 4: crystallisation
Question : Which of the following is arranged in order of decreasing conductivity?
Option 1: Copper, aluminium, steel, silver
Option 2: Aluminium, silver, copper, steel
Option 3: Copper, silver, aluminium, steel
Option 4: Silver, copper, aluminium, steel
Question : Galvanisation is a process in which a protective_________ coating is applied to iron to prevent it from rusting.
Option 1: nickel
Option 2: zinc
Option 3: copper
Option 4: silver
Question : Which of the following metals occurs in a free state?
Option 1: Copper
Option 2: Iron
Option 3: Zinc
Option 4: Lead
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