Question

Which of the following reacts with cold water vigorously? *

carbon

magnesium

sodium

sulphur​

Answer 1

Reactivity series of metals

Order of reactivityMetalReactions with water or steamSecond most reactivesodium (Na)vigorous reaction with cold waterThird most reactivecalcium (Ca)less vigorous reaction with cold waterleast reactivemagnesium (Mg)slow reaction with cold water, vigorous with hot water

Answer 2

sodium.

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