Which of the following reacts

Question:

Which of the following reacts with cold water vigorously?

(a) Carbon

(b) Sodium

(c) Magnesium

(d) Sulphur

Solution:

(b) The vigour (or intensity) of reaction of a metal with water depends on its chemical reactivity. Sodium is a very reactive metal, so it reacts violently

even with cold water.

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