Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
DifficultIdentify the elements with the following properties and arrange them in increasing order of their reactivity:
$(a)$ An element which is a soft and reactive metal.
$(b)$ The metal which is an important constituent of limestone.
$(c)$ The metal which exists in a liquid state at room temperature.
$(a)$ An element which is a soft and reactive metal.
$(b)$ The metal which is an important constituent of limestone.
$(c)$ The metal which exists in a liquid state at room temperature.
(A) The soft and reactive metal is Sodium $(Na)$ or Potassium $(K)$.
$(b)$ The metal that is an important constituent of limestone $(CaCO_3)$ is Calcium $(Ca)$.
$(c)$ The metal that exists in a liquid state at room temperature is Mercury $(Hg)$.
Reactivity series order: $Hg < Ca < Na < K$.
$(b)$ The metal that is an important constituent of limestone $(CaCO_3)$ is Calcium $(Ca)$.
$(c)$ The metal that exists in a liquid state at room temperature is Mercury $(Hg)$.
Reactivity series order: $Hg < Ca < Na < K$.
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