Which of the following metals float after reacting with cold water?

Gold (Au)

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Zinc (Zn)

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Iron (Fe)

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Calcium (Ca)

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Solution

The correct option is D
Calcium (Ca)

Calcium reacts less vigorously with water to form hydrogen gas. The metal starts floating because the bubbles of hydrogen gas formed stick to the surface of the metal.

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Which of the following metals float in water when it is reacted with cold water?

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Which of the following metals float after reacting with cold water?

The correct option is D Calcium (Ca) Calcium reacts less vigorously with water to form hydrogen gas. The metal starts floating because the bubbles of hydrogen gas formed stick to the surface of the metal.

The correct option is D
Calcium (Ca)

Calcium reacts less vigorously with water to form hydrogen gas. The metal starts floating because the bubbles of hydrogen gas formed stick to the surface of the metal.