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Which of the following metals reacts violently with cold water?

This questions was previously asked in

SSC MTS 25th July 2022 Shift-2

Magnesium

Aluminium

Zinc

Potassium

- Magnesium: Reacts slowly with cold water, but can react more significantly with steam.

- Aluminium: Generally does not react with cold water due to its protective oxide layer.

- Zinc: Reacts with hot water or steam, but very little to no reaction with cold water.

- Potassium: Reacts violently with cold water, producing heat and hydrogen gas, and often ignites the hydrogen.

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