Question

Zinc blocks are welded to the hulls of ships. Explain with suitable reaction.

Answer 1

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Sacrificial Anodes are linked electrically to the ship's hull. .lAs such, they shield the ship's body and syste while the ship stays protected, giving rise to the name 'Sacrificial Anodes'.

 Zinc is used because it has a higher voltage in the water so the current is more inclined to flow from it than from the propeller.