What is the observation that can be made when calcium reacts with water?

Vigorous reaction

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Calcium floats on water

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Calcium does not react at all

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Explosive reaction

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Solution

The correct option is B
Calcium floats on water

Calcium reacts less vigorously with water as compared to potassium and sodium 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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Similar questions

What is the observation that can be made when calcium reacts with $H_{2} O$ ?

H_{2} O

H_{2} O

H_{2} O

H_{2} O

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